Home / 20,504.16-30,761.04-8,818.56

Finding the Fourth Proportional to 20,504.16, 30,761.04 and 8,818.56

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Solution

The fourth proportional to 20,504.16, 30,761.04 and 8,818.56 is: 13,229.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.16 : 30,761.04 = 8,818.56 : x
  2. Step 2: Convert to fraction form
    20,504.16/30,761.04 = 8,818.56/x
  3. Step 3: Cross multiply
    20,504.16x = 30,761.04 × 8,818.56
  4. Step 4: Simplify right side
    20,504.16x = 271,268,076.90
  5. Step 5: Solve for x
    x = 271,268,076.90/20,504.16
  6. Step 6: Final answer
    x = 13,229.90

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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.