Home / 20,481.20-30,696.90-11,098.97

Finding the Fourth Proportional to 20,481.20, 30,696.90 and 11,098.97

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Solution

The fourth proportional to 20,481.20, 30,696.90 and 11,098.97 is: 16,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,481.20 : 30,696.90 = 11,098.97 : x
  2. Step 2: Convert to fraction form
    20,481.20/30,696.90 = 11,098.97/x
  3. Step 3: Cross multiply
    20,481.20x = 30,696.90 × 11,098.97
  4. Step 4: Simplify right side
    20,481.20x = 340,704,096.09
  5. Step 5: Solve for x
    x = 340,704,096.09/20,481.20
  6. Step 6: Final answer
    x = 16,634.96

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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.