Home / 20,452.20-30,662.10-8,755.80

Finding the Fourth Proportional to 20,452.20, 30,662.10 and 8,755.80

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Solution

The fourth proportional to 20,452.20, 30,662.10 and 8,755.80 is: 13,126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.20 : 30,662.10 = 8,755.80 : x
  2. Step 2: Convert to fraction form
    20,452.20/30,662.10 = 8,755.80/x
  3. Step 3: Cross multiply
    20,452.20x = 30,662.10 × 8,755.80
  4. Step 4: Simplify right side
    20,452.20x = 268,471,215.18
  5. Step 5: Solve for x
    x = 268,471,215.18/20,452.20
  6. Step 6: Final answer
    x = 13,126.76

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1.5x scale

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.