Home / 31,882.20-47,824.90-12,162.30

Finding the Fourth Proportional to 31,882.20, 47,824.90 and 12,162.30

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Solution

The fourth proportional to 31,882.20, 47,824.90 and 12,162.30 is: 18,244.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,882.20 : 47,824.90 = 12,162.30 : x
  2. Step 2: Convert to fraction form
    31,882.20/47,824.90 = 12,162.30/x
  3. Step 3: Cross multiply
    31,882.20x = 47,824.90 × 12,162.30
  4. Step 4: Simplify right side
    31,882.20x = 581,660,781.27
  5. Step 5: Solve for x
    x = 581,660,781.27/31,882.20
  6. Step 6: Final answer
    x = 18,244.06

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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.