Home / 25,951.11-38,932.35-8,422.71

Finding the Fourth Proportional to 25,951.11, 38,932.35 and 8,422.71

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Solution

The fourth proportional to 25,951.11, 38,932.35 and 8,422.71 is: 12,635.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,951.11 : 38,932.35 = 8,422.71 : x
  2. Step 2: Convert to fraction form
    25,951.11/38,932.35 = 8,422.71/x
  3. Step 3: Cross multiply
    25,951.11x = 38,932.35 × 8,422.71
  4. Step 4: Simplify right side
    25,951.11x = 327,915,893.67
  5. Step 5: Solve for x
    x = 327,915,893.67/25,951.11
  6. Step 6: Final answer
    x = 12,635.91

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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.