Home / 31,766.76-47,609.10-15,131.88

Finding the Fourth Proportional to 31,766.76, 47,609.10 and 15,131.88

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Solution

The fourth proportional to 31,766.76, 47,609.10 and 15,131.88 is: 22,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,766.76 : 47,609.10 = 15,131.88 : x
  2. Step 2: Convert to fraction form
    31,766.76/47,609.10 = 15,131.88/x
  3. Step 3: Cross multiply
    31,766.76x = 47,609.10 × 15,131.88
  4. Step 4: Simplify right side
    31,766.76x = 720,415,188.11
  5. Step 5: Solve for x
    x = 720,415,188.11/31,766.76
  6. Step 6: Final answer
    x = 22,678.27

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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.