Home / 21,067.14-29,072.82-11,636.28

Finding the Fourth Proportional to 21,067.14, 29,072.82 and 11,636.28

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Solution

The fourth proportional to 21,067.14, 29,072.82 and 11,636.28 is: 16,058.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.14 : 29,072.82 = 11,636.28 : x
  2. Step 2: Convert to fraction form
    21,067.14/29,072.82 = 11,636.28/x
  3. Step 3: Cross multiply
    21,067.14x = 29,072.82 × 11,636.28
  4. Step 4: Simplify right side
    21,067.14x = 338,299,473.91
  5. Step 5: Solve for x
    x = 338,299,473.91/21,067.14
  6. Step 6: Final answer
    x = 16,058.16

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1.5x scale

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.