Home / 21,434.97-29,589.57-16,131.09

Finding the Fourth Proportional to 21,434.97, 29,589.57 and 16,131.09

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Solution

The fourth proportional to 21,434.97, 29,589.57 and 16,131.09 is: 22,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434.97 : 29,589.57 = 16,131.09 : x
  2. Step 2: Convert to fraction form
    21,434.97/29,589.57 = 16,131.09/x
  3. Step 3: Cross multiply
    21,434.97x = 29,589.57 × 16,131.09
  4. Step 4: Simplify right side
    21,434.97x = 477,312,016.73
  5. Step 5: Solve for x
    x = 477,312,016.73/21,434.97
  6. Step 6: Final answer
    x = 22,267.91

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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.