Home / 38,577.05-53,236.06-21,581.21

Finding the Fourth Proportional to 38,577.05, 53,236.06 and 21,581.21

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Solution

The fourth proportional to 38,577.05, 53,236.06 and 21,581.21 is: 29,781.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,577.05 : 53,236.06 = 21,581.21 : x
  2. Step 2: Convert to fraction form
    38,577.05/53,236.06 = 21,581.21/x
  3. Step 3: Cross multiply
    38,577.05x = 53,236.06 × 21,581.21
  4. Step 4: Simplify right side
    38,577.05x = 1,148,898,580.54
  5. Step 5: Solve for x
    x = 1,148,898,580.54/38,577.05
  6. Step 6: Final answer
    x = 29,781.92

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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.