Home / 20,414.96-28,170.56-11,462.38

Finding the Fourth Proportional to 20,414.96, 28,170.56 and 11,462.38

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Solution

The fourth proportional to 20,414.96, 28,170.56 and 11,462.38 is: 15,816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414.96 : 28,170.56 = 11,462.38 : x
  2. Step 2: Convert to fraction form
    20,414.96/28,170.56 = 11,462.38/x
  3. Step 3: Cross multiply
    20,414.96x = 28,170.56 × 11,462.38
  4. Step 4: Simplify right side
    20,414.96x = 322,901,663.53
  5. Step 5: Solve for x
    x = 322,901,663.53/20,414.96
  6. Step 6: Final answer
    x = 15,816.91

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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.