Home / 39,540.38-54,565.50-21,635.06

Finding the Fourth Proportional to 39,540.38, 54,565.50 and 21,635.06

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Solution

The fourth proportional to 39,540.38, 54,565.50 and 21,635.06 is: 29,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,540.38 : 54,565.50 = 21,635.06 : x
  2. Step 2: Convert to fraction form
    39,540.38/54,565.50 = 21,635.06/x
  3. Step 3: Cross multiply
    39,540.38x = 54,565.50 × 21,635.06
  4. Step 4: Simplify right side
    39,540.38x = 1,180,527,866.43
  5. Step 5: Solve for x
    x = 1,180,527,866.43/39,540.38
  6. Step 6: Final answer
    x = 29,856.26

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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.