Home / 38,411.08-53,005.06-21,414.76

Finding the Fourth Proportional to 38,411.08, 53,005.06 and 21,414.76

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Solution

The fourth proportional to 38,411.08, 53,005.06 and 21,414.76 is: 29,551.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,411.08 : 53,005.06 = 21,414.76 : x
  2. Step 2: Convert to fraction form
    38,411.08/53,005.06 = 21,414.76/x
  3. Step 3: Cross multiply
    38,411.08x = 53,005.06 × 21,414.76
  4. Step 4: Simplify right side
    38,411.08x = 1,135,090,638.69
  5. Step 5: Solve for x
    x = 1,135,090,638.69/38,411.08
  6. Step 6: Final answer
    x = 29,551.13

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Find fourth proportional to 19,205.54, 26,502.53 and 10,707.38
Half scale
Find fourth proportional to 76,822.16, 106,010.12 and 42,829.52
Double scale
Find fourth proportional to 38,412.08, 53,006.44 and 21,415.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.