Home / 39,553.38-54,583.68-21,648.39

Finding the Fourth Proportional to 39,553.38, 54,583.68 and 21,648.39

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Solution

The fourth proportional to 39,553.38, 54,583.68 and 21,648.39 is: 29,874.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,553.38 : 54,583.68 = 21,648.39 : x
  2. Step 2: Convert to fraction form
    39,553.38/54,583.68 = 21,648.39/x
  3. Step 3: Cross multiply
    39,553.38x = 54,583.68 × 21,648.39
  4. Step 4: Simplify right side
    39,553.38x = 1,181,648,792.28
  5. Step 5: Solve for x
    x = 1,181,648,792.28/39,553.38
  6. Step 6: Final answer
    x = 29,874.79

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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.