Home / 21,544.38-29,728.17-11,983.68

Finding the Fourth Proportional to 21,544.38, 29,728.17 and 11,983.68

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Solution

The fourth proportional to 21,544.38, 29,728.17 and 11,983.68 is: 16,535.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,544.38 : 29,728.17 = 11,983.68 : x
  2. Step 2: Convert to fraction form
    21,544.38/29,728.17 = 11,983.68/x
  3. Step 3: Cross multiply
    21,544.38x = 29,728.17 × 11,983.68
  4. Step 4: Simplify right side
    21,544.38x = 356,252,876.27
  5. Step 5: Solve for x
    x = 356,252,876.27/21,544.38
  6. Step 6: Final answer
    x = 16,535.77

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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.