Home / 38,641.13-53,324.17-21,645.98

Finding the Fourth Proportional to 38,641.13, 53,324.17 and 21,645.98

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Solution

The fourth proportional to 38,641.13, 53,324.17 and 21,645.98 is: 29,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,641.13 : 53,324.17 = 21,645.98 : x
  2. Step 2: Convert to fraction form
    38,641.13/53,324.17 = 21,645.98/x
  3. Step 3: Cross multiply
    38,641.13x = 53,324.17 × 21,645.98
  4. Step 4: Simplify right side
    38,641.13x = 1,154,253,996.53
  5. Step 5: Solve for x
    x = 1,154,253,996.53/38,641.13
  6. Step 6: Final answer
    x = 29,871.12

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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.