Home / 17,080.20-25,623.10-5,390.60

Finding the Fourth Proportional to 17,080.20, 25,623.10 and 5,390.60

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Solution

The fourth proportional to 17,080.20, 25,623.10 and 5,390.60 is: 8,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,080.20 : 25,623.10 = 5,390.60 : x
  2. Step 2: Convert to fraction form
    17,080.20/25,623.10 = 5,390.60/x
  3. Step 3: Cross multiply
    17,080.20x = 25,623.10 × 5,390.60
  4. Step 4: Simplify right side
    17,080.20x = 138,123,882.86
  5. Step 5: Solve for x
    x = 138,123,882.86/17,080.20
  6. Step 6: Final answer
    x = 8,086.78

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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.