Home / 20,974.24-28,944.50-11,414.13

Finding the Fourth Proportional to 20,974.24, 28,944.50 and 11,414.13

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Solution

The fourth proportional to 20,974.24, 28,944.50 and 11,414.13 is: 15,751.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974.24 : 28,944.50 = 11,414.13 : x
  2. Step 2: Convert to fraction form
    20,974.24/28,944.50 = 11,414.13/x
  3. Step 3: Cross multiply
    20,974.24x = 28,944.50 × 11,414.13
  4. Step 4: Simplify right side
    20,974.24x = 330,376,285.79
  5. Step 5: Solve for x
    x = 330,376,285.79/20,974.24
  6. Step 6: Final answer
    x = 15,751.53

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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.