Home / 25,680.42-38,494.20-12,516.50

Finding the Fourth Proportional to 25,680.42, 38,494.20 and 12,516.50

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Solution

The fourth proportional to 25,680.42, 38,494.20 and 12,516.50 is: 18,761.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,680.42 : 38,494.20 = 12,516.50 : x
  2. Step 2: Convert to fraction form
    25,680.42/38,494.20 = 12,516.50/x
  3. Step 3: Cross multiply
    25,680.42x = 38,494.20 × 12,516.50
  4. Step 4: Simplify right side
    25,680.42x = 481,812,654.30
  5. Step 5: Solve for x
    x = 481,812,654.30/25,680.42
  6. Step 6: Final answer
    x = 18,761.87

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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.