Home / 31,414.80-47,119.89-9,229.92

Finding the Fourth Proportional to 31,414.80, 47,119.89 and 9,229.92

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Solution

The fourth proportional to 31,414.80, 47,119.89 and 9,229.92 is: 13,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,414.80 : 47,119.89 = 9,229.92 : x
  2. Step 2: Convert to fraction form
    31,414.80/47,119.89 = 9,229.92/x
  3. Step 3: Cross multiply
    31,414.80x = 47,119.89 × 9,229.92
  4. Step 4: Simplify right side
    31,414.80x = 434,912,815.11
  5. Step 5: Solve for x
    x = 434,912,815.11/31,414.80
  6. Step 6: Final answer
    x = 13,844.20

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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.