Home / 20,195.18-27,856.38-13,034.24

Finding the Fourth Proportional to 20,195.18, 27,856.38 and 13,034.24

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Solution

The fourth proportional to 20,195.18, 27,856.38 and 13,034.24 is: 17,978.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.18 : 27,856.38 = 13,034.24 : x
  2. Step 2: Convert to fraction form
    20,195.18/27,856.38 = 13,034.24/x
  3. Step 3: Cross multiply
    20,195.18x = 27,856.38 × 13,034.24
  4. Step 4: Simplify right side
    20,195.18x = 363,086,742.45
  5. Step 5: Solve for x
    x = 363,086,742.45/20,195.18
  6. Step 6: Final answer
    x = 17,978.88

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1.5x scale

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.