Home / 21,997.91-33,006.18-11,475.71

Finding the Fourth Proportional to 21,997.91, 33,006.18 and 11,475.71

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Solution

The fourth proportional to 21,997.91, 33,006.18 and 11,475.71 is: 17,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.91 : 33,006.18 = 11,475.71 : x
  2. Step 2: Convert to fraction form
    21,997.91/33,006.18 = 11,475.71/x
  3. Step 3: Cross multiply
    21,997.91x = 33,006.18 × 11,475.71
  4. Step 4: Simplify right side
    21,997.91x = 378,769,351.66
  5. Step 5: Solve for x
    x = 378,769,351.66/21,997.91
  6. Step 6: Final answer
    x = 17,218.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.