Home / 21,067.66-29,072.60-11,636.02

Finding the Fourth Proportional to 21,067.66, 29,072.60 and 11,636.02

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Solution

The fourth proportional to 21,067.66, 29,072.60 and 11,636.02 is: 16,057.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.66 : 29,072.60 = 11,636.02 : x
  2. Step 2: Convert to fraction form
    21,067.66/29,072.60 = 11,636.02/x
  3. Step 3: Cross multiply
    21,067.66x = 29,072.60 × 11,636.02
  4. Step 4: Simplify right side
    21,067.66x = 338,289,209.69
  5. Step 5: Solve for x
    x = 338,289,209.69/21,067.66
  6. Step 6: Final answer
    x = 16,057.28

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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.