Home / 21,067.52-29,072.99-11,635.88

Finding the Fourth Proportional to 21,067.52, 29,072.99 and 11,635.88

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Solution

The fourth proportional to 21,067.52, 29,072.99 and 11,635.88 is: 16,057.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.52 : 29,072.99 = 11,635.88 : x
  2. Step 2: Convert to fraction form
    21,067.52/29,072.99 = 11,635.88/x
  3. Step 3: Cross multiply
    21,067.52x = 29,072.99 × 11,635.88
  4. Step 4: Simplify right side
    21,067.52x = 338,289,706.61
  5. Step 5: Solve for x
    x = 338,289,706.61/21,067.52
  6. Step 6: Final answer
    x = 16,057.41

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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.