Home / 31,819.10-43,909.15-17,672.86

Finding the Fourth Proportional to 31,819.10, 43,909.15 and 17,672.86

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Solution

The fourth proportional to 31,819.10, 43,909.15 and 17,672.86 is: 24,387.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,819.10 : 43,909.15 = 17,672.86 : x
  2. Step 2: Convert to fraction form
    31,819.10/43,909.15 = 17,672.86/x
  3. Step 3: Cross multiply
    31,819.10x = 43,909.15 × 17,672.86
  4. Step 4: Simplify right side
    31,819.10x = 775,999,952.76
  5. Step 5: Solve for x
    x = 775,999,952.76/31,819.10
  6. Step 6: Final answer
    x = 24,387.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.