Home / 39,557.43-54,587.13-21,648.97

Finding the Fourth Proportional to 39,557.43, 54,587.13 and 21,648.97

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Solution

The fourth proportional to 39,557.43, 54,587.13 and 21,648.97 is: 29,874.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,557.43 : 54,587.13 = 21,648.97 : x
  2. Step 2: Convert to fraction form
    39,557.43/54,587.13 = 21,648.97/x
  3. Step 3: Cross multiply
    39,557.43x = 54,587.13 × 21,648.97
  4. Step 4: Simplify right side
    39,557.43x = 1,181,755,139.76
  5. Step 5: Solve for x
    x = 1,181,755,139.76/39,557.43
  6. Step 6: Final answer
    x = 29,874.42

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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.