Home / 20,060.28-27,685.59-11,676.78

Finding the Fourth Proportional to 20,060.28, 27,685.59 and 11,676.78

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Solution

The fourth proportional to 20,060.28, 27,685.59 and 11,676.78 is: 16,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,060.28 : 27,685.59 = 11,676.78 : x
  2. Step 2: Convert to fraction form
    20,060.28/27,685.59 = 11,676.78/x
  3. Step 3: Cross multiply
    20,060.28x = 27,685.59 × 11,676.78
  4. Step 4: Simplify right side
    20,060.28x = 323,278,543.60
  5. Step 5: Solve for x
    x = 323,278,543.60/20,060.28
  6. Step 6: Final answer
    x = 16,115.36

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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.