Home / 25,687.53-38,531.18-8,158.73

Finding the Fourth Proportional to 25,687.53, 38,531.18 and 8,158.73

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Solution

The fourth proportional to 25,687.53, 38,531.18 and 8,158.73 is: 12,238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,687.53 : 38,531.18 = 8,158.73 : x
  2. Step 2: Convert to fraction form
    25,687.53/38,531.18 = 8,158.73/x
  3. Step 3: Cross multiply
    25,687.53x = 38,531.18 × 8,158.73
  4. Step 4: Simplify right side
    25,687.53x = 314,365,260.75
  5. Step 5: Solve for x
    x = 314,365,260.75/25,687.53
  6. Step 6: Final answer
    x = 12,238.05

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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.