Home / 25,748.92-38,629.19-13,902.43

Finding the Fourth Proportional to 25,748.92, 38,629.19 and 13,902.43

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Solution

The fourth proportional to 25,748.92, 38,629.19 and 13,902.43 is: 20,856.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,748.92 : 38,629.19 = 13,902.43 : x
  2. Step 2: Convert to fraction form
    25,748.92/38,629.19 = 13,902.43/x
  3. Step 3: Cross multiply
    25,748.92x = 38,629.19 × 13,902.43
  4. Step 4: Simplify right side
    25,748.92x = 537,039,609.93
  5. Step 5: Solve for x
    x = 537,039,609.93/25,748.92
  6. Step 6: Final answer
    x = 20,856.78

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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.