Home / 39,531.38-54,553.10-21,626.06

Finding the Fourth Proportional to 39,531.38, 54,553.10 and 21,626.06

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Solution

The fourth proportional to 39,531.38, 54,553.10 and 21,626.06 is: 29,843.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,531.38 : 54,553.10 = 21,626.06 : x
  2. Step 2: Convert to fraction form
    39,531.38/54,553.10 = 21,626.06/x
  3. Step 3: Cross multiply
    39,531.38x = 54,553.10 × 21,626.06
  4. Step 4: Simplify right side
    39,531.38x = 1,179,768,613.79
  5. Step 5: Solve for x
    x = 1,179,768,613.79/39,531.38
  6. Step 6: Final answer
    x = 29,843.85

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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.