Home / 21,198.82-29,255.70-11,767.54

Finding the Fourth Proportional to 21,198.82, 29,255.70 and 11,767.54

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Solution

The fourth proportional to 21,198.82, 29,255.70 and 11,767.54 is: 16,239.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.82 : 29,255.70 = 11,767.54 : x
  2. Step 2: Convert to fraction form
    21,198.82/29,255.70 = 11,767.54/x
  3. Step 3: Cross multiply
    21,198.82x = 29,255.70 × 11,767.54
  4. Step 4: Simplify right side
    21,198.82x = 344,267,619.98
  5. Step 5: Solve for x
    x = 344,267,619.98/21,198.82
  6. Step 6: Final answer
    x = 16,239.94

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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.