Home / 31,649.22-47,446.49-15,000.75

Finding the Fourth Proportional to 31,649.22, 47,446.49 and 15,000.75

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Solution

The fourth proportional to 31,649.22, 47,446.49 and 15,000.75 is: 22,488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,649.22 : 47,446.49 = 15,000.75 : x
  2. Step 2: Convert to fraction form
    31,649.22/47,446.49 = 15,000.75/x
  3. Step 3: Cross multiply
    31,649.22x = 47,446.49 × 15,000.75
  4. Step 4: Simplify right side
    31,649.22x = 711,732,972.37
  5. Step 5: Solve for x
    x = 711,732,972.37/31,649.22
  6. Step 6: Final answer
    x = 22,488.17

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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.