Home / 31,711.20-47,567.20-15,072.96

Finding the Fourth Proportional to 31,711.20, 47,567.20 and 15,072.96

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Solution

The fourth proportional to 31,711.20, 47,567.20 and 15,072.96 is: 22,609.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,711.20 : 47,567.20 = 15,072.96 : x
  2. Step 2: Convert to fraction form
    31,711.20/47,567.20 = 15,072.96/x
  3. Step 3: Cross multiply
    31,711.20x = 47,567.20 × 15,072.96
  4. Step 4: Simplify right side
    31,711.20x = 716,978,502.91
  5. Step 5: Solve for x
    x = 716,978,502.91/31,711.20
  6. Step 6: Final answer
    x = 22,609.63

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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.