Home / 31,930.20-47,893.68-12,207.24

Finding the Fourth Proportional to 31,930.20, 47,893.68 and 12,207.24

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Solution

The fourth proportional to 31,930.20, 47,893.68 and 12,207.24 is: 18,310.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,930.20 : 47,893.68 = 12,207.24 : x
  2. Step 2: Convert to fraction form
    31,930.20/47,893.68 = 12,207.24/x
  3. Step 3: Cross multiply
    31,930.20x = 47,893.68 × 12,207.24
  4. Step 4: Simplify right side
    31,930.20x = 584,649,646.24
  5. Step 5: Solve for x
    x = 584,649,646.24/31,930.20
  6. Step 6: Final answer
    x = 18,310.24

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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.