Home / 20,049.44-27,680.80-12,882.26

Finding the Fourth Proportional to 20,049.44, 27,680.80 and 12,882.26

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Solution

The fourth proportional to 20,049.44, 27,680.80 and 12,882.26 is: 17,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.44 : 27,680.80 = 12,882.26 : x
  2. Step 2: Convert to fraction form
    20,049.44/27,680.80 = 12,882.26/x
  3. Step 3: Cross multiply
    20,049.44x = 27,680.80 × 12,882.26
  4. Step 4: Simplify right side
    20,049.44x = 356,591,262.61
  5. Step 5: Solve for x
    x = 356,591,262.61/20,049.44
  6. Step 6: Final answer
    x = 17,785.60

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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.