Home / 25,674.70-38,524.38-12,519.90

Finding the Fourth Proportional to 25,674.70, 38,524.38 and 12,519.90

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Solution

The fourth proportional to 25,674.70, 38,524.38 and 12,519.90 is: 18,785.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,674.70 : 38,524.38 = 12,519.90 : x
  2. Step 2: Convert to fraction form
    25,674.70/38,524.38 = 12,519.90/x
  3. Step 3: Cross multiply
    25,674.70x = 38,524.38 × 12,519.90
  4. Step 4: Simplify right side
    25,674.70x = 482,321,385.16
  5. Step 5: Solve for x
    x = 482,321,385.16/25,674.70
  6. Step 6: Final answer
    x = 18,785.86

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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.