Home / 25,400.87-38,103.13-8,760.66

Finding the Fourth Proportional to 25,400.87, 38,103.13 and 8,760.66

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Solution

The fourth proportional to 25,400.87, 38,103.13 and 8,760.66 is: 13,141.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,400.87 : 38,103.13 = 8,760.66 : x
  2. Step 2: Convert to fraction form
    25,400.87/38,103.13 = 8,760.66/x
  3. Step 3: Cross multiply
    25,400.87x = 38,103.13 × 8,760.66
  4. Step 4: Simplify right side
    25,400.87x = 333,808,332.55
  5. Step 5: Solve for x
    x = 333,808,332.55/25,400.87
  6. Step 6: Final answer
    x = 13,141.61

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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.