Home / 20,262.47-27,965.45-11,878.97

Finding the Fourth Proportional to 20,262.47, 27,965.45 and 11,878.97

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Solution

The fourth proportional to 20,262.47, 27,965.45 and 11,878.97 is: 16,394.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.47 : 27,965.45 = 11,878.97 : x
  2. Step 2: Convert to fraction form
    20,262.47/27,965.45 = 11,878.97/x
  3. Step 3: Cross multiply
    20,262.47x = 27,965.45 × 11,878.97
  4. Step 4: Simplify right side
    20,262.47x = 332,200,691.78
  5. Step 5: Solve for x
    x = 332,200,691.78/20,262.47
  6. Step 6: Final answer
    x = 16,394.88

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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.