Home / 21,067.89-29,073.66-11,636.45

Finding the Fourth Proportional to 21,067.89, 29,073.66 and 11,636.45

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Solution

The fourth proportional to 21,067.89, 29,073.66 and 11,636.45 is: 16,058.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.89 : 29,073.66 = 11,636.45 : x
  2. Step 2: Convert to fraction form
    21,067.89/29,073.66 = 11,636.45/x
  3. Step 3: Cross multiply
    21,067.89x = 29,073.66 × 11,636.45
  4. Step 4: Simplify right side
    21,067.89x = 338,314,190.91
  5. Step 5: Solve for x
    x = 338,314,190.91/21,067.89
  6. Step 6: Final answer
    x = 16,058.29

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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.