Home / 39,229.39-54,134.31-21,324.25

Finding the Fourth Proportional to 39,229.39, 54,134.31 and 21,324.25

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Solution

The fourth proportional to 39,229.39, 54,134.31 and 21,324.25 is: 29,426.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,229.39 : 54,134.31 = 21,324.25 : x
  2. Step 2: Convert to fraction form
    39,229.39/54,134.31 = 21,324.25/x
  3. Step 3: Cross multiply
    39,229.39x = 54,134.31 × 21,324.25
  4. Step 4: Simplify right side
    39,229.39x = 1,154,373,560.02
  5. Step 5: Solve for x
    x = 1,154,373,560.02/39,229.39
  6. Step 6: Final answer
    x = 29,426.24

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Double scale
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Similar ratio
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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.