Home / 31,757.92-47,630.40-12,029.68

Finding the Fourth Proportional to 31,757.92, 47,630.40 and 12,029.68

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Solution

The fourth proportional to 31,757.92, 47,630.40 and 12,029.68 is: 18,042.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,757.92 : 47,630.40 = 12,029.68 : x
  2. Step 2: Convert to fraction form
    31,757.92/47,630.40 = 12,029.68/x
  3. Step 3: Cross multiply
    31,757.92x = 47,630.40 × 12,029.68
  4. Step 4: Simplify right side
    31,757.92x = 572,978,470.27
  5. Step 5: Solve for x
    x = 572,978,470.27/31,757.92
  6. Step 6: Final answer
    x = 18,042.07

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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.