Home / 20,793.06-28,694.38-11,361.69

Finding the Fourth Proportional to 20,793.06, 28,694.38 and 11,361.69

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Solution

The fourth proportional to 20,793.06, 28,694.38 and 11,361.69 is: 15,679.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.06 : 28,694.38 = 11,361.69 : x
  2. Step 2: Convert to fraction form
    20,793.06/28,694.38 = 11,361.69/x
  3. Step 3: Cross multiply
    20,793.06x = 28,694.38 × 11,361.69
  4. Step 4: Simplify right side
    20,793.06x = 326,016,650.30
  5. Step 5: Solve for x
    x = 326,016,650.30/20,793.06
  6. Step 6: Final answer
    x = 15,679.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.