Home / 31,983.20-47,951.11-15,327.38

Finding the Fourth Proportional to 31,983.20, 47,951.11 and 15,327.38

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Solution

The fourth proportional to 31,983.20, 47,951.11 and 15,327.38 is: 22,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,983.20 : 47,951.11 = 15,327.38 : x
  2. Step 2: Convert to fraction form
    31,983.20/47,951.11 = 15,327.38/x
  3. Step 3: Cross multiply
    31,983.20x = 47,951.11 × 15,327.38
  4. Step 4: Simplify right side
    31,983.20x = 734,964,644.64
  5. Step 5: Solve for x
    x = 734,964,644.64/31,983.20
  6. Step 6: Final answer
    x = 22,979.71

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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.