Home / 21,081.82-29,092.01-11,649.77

Finding the Fourth Proportional to 21,081.82, 29,092.01 and 11,649.77

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Solution

The fourth proportional to 21,081.82, 29,092.01 and 11,649.77 is: 16,076.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081.82 : 29,092.01 = 11,649.77 : x
  2. Step 2: Convert to fraction form
    21,081.82/29,092.01 = 11,649.77/x
  3. Step 3: Cross multiply
    21,081.82x = 29,092.01 × 11,649.77
  4. Step 4: Simplify right side
    21,081.82x = 338,915,359.90
  5. Step 5: Solve for x
    x = 338,915,359.90/21,081.82
  6. Step 6: Final answer
    x = 16,076.19

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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.