Home / 20,341.97-30,517.83-8,489.15

Finding the Fourth Proportional to 20,341.97, 30,517.83 and 8,489.15

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Solution

The fourth proportional to 20,341.97, 30,517.83 and 8,489.15 is: 12,735.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341.97 : 30,517.83 = 8,489.15 : x
  2. Step 2: Convert to fraction form
    20,341.97/30,517.83 = 8,489.15/x
  3. Step 3: Cross multiply
    20,341.97x = 30,517.83 × 8,489.15
  4. Step 4: Simplify right side
    20,341.97x = 259,070,436.54
  5. Step 5: Solve for x
    x = 259,070,436.54/20,341.97
  6. Step 6: Final answer
    x = 12,735.76

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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.