Home / 39,539.38-54,564.12-21,634.06

Finding the Fourth Proportional to 39,539.38, 54,564.12 and 21,634.06

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Solution

The fourth proportional to 39,539.38, 54,564.12 and 21,634.06 is: 29,854.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,539.38 : 54,564.12 = 21,634.06 : x
  2. Step 2: Convert to fraction form
    39,539.38/54,564.12 = 21,634.06/x
  3. Step 3: Cross multiply
    39,539.38x = 54,564.12 × 21,634.06
  4. Step 4: Simplify right side
    39,539.38x = 1,180,443,445.93
  5. Step 5: Solve for x
    x = 1,180,443,445.93/39,539.38
  6. Step 6: Final answer
    x = 29,854.88

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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.