Home / 31,452.23-47,178.72-12,481.52

Finding the Fourth Proportional to 31,452.23, 47,178.72 and 12,481.52

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Solution

The fourth proportional to 31,452.23, 47,178.72 and 12,481.52 is: 18,722.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,452.23 : 47,178.72 = 12,481.52 : x
  2. Step 2: Convert to fraction form
    31,452.23/47,178.72 = 12,481.52/x
  3. Step 3: Cross multiply
    31,452.23x = 47,178.72 × 12,481.52
  4. Step 4: Simplify right side
    31,452.23x = 588,861,901.36
  5. Step 5: Solve for x
    x = 588,861,901.36/31,452.23
  6. Step 6: Final answer
    x = 18,722.42

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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.