Home / 25,690.11-38,438.26-15,165.85

Finding the Fourth Proportional to 25,690.11, 38,438.26 and 15,165.85

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Solution

The fourth proportional to 25,690.11, 38,438.26 and 15,165.85 is: 22,691.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,690.11 : 38,438.26 = 15,165.85 : x
  2. Step 2: Convert to fraction form
    25,690.11/38,438.26 = 15,165.85/x
  3. Step 3: Cross multiply
    25,690.11x = 38,438.26 × 15,165.85
  4. Step 4: Simplify right side
    25,690.11x = 582,949,052.93
  5. Step 5: Solve for x
    x = 582,949,052.93/25,690.11
  6. Step 6: Final answer
    x = 22,691.58

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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.