Home / 38,469.11-57,805.14-20,712.90

Finding the Fourth Proportional to 38,469.11, 57,805.14 and 20,712.90

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Solution

The fourth proportional to 38,469.11, 57,805.14 and 20,712.90 is: 31,123.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,469.11 : 57,805.14 = 20,712.90 : x
  2. Step 2: Convert to fraction form
    38,469.11/57,805.14 = 20,712.90/x
  3. Step 3: Cross multiply
    38,469.11x = 57,805.14 × 20,712.90
  4. Step 4: Simplify right side
    38,469.11x = 1,197,312,084.31
  5. Step 5: Solve for x
    x = 1,197,312,084.31/38,469.11
  6. Step 6: Final answer
    x = 31,123.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.