Home / 25,728.12-38,591.78-8,197.70

Finding the Fourth Proportional to 25,728.12, 38,591.78 and 8,197.70

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Solution

The fourth proportional to 25,728.12, 38,591.78 and 8,197.70 is: 12,296.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.12 : 38,591.78 = 8,197.70 : x
  2. Step 2: Convert to fraction form
    25,728.12/38,591.78 = 8,197.70/x
  3. Step 3: Cross multiply
    25,728.12x = 38,591.78 × 8,197.70
  4. Step 4: Simplify right side
    25,728.12x = 316,363,600.96
  5. Step 5: Solve for x
    x = 316,363,600.96/25,728.12
  6. Step 6: Final answer
    x = 12,296.41

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Similar ratio
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1.5x scale

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.