Home / 22,511.67-31,067.19-13,561.98

Finding the Fourth Proportional to 22,511.67, 31,067.19 and 13,561.98

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Solution

The fourth proportional to 22,511.67, 31,067.19 and 13,561.98 is: 18,716.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,511.67 : 31,067.19 = 13,561.98 : x
  2. Step 2: Convert to fraction form
    22,511.67/31,067.19 = 13,561.98/x
  3. Step 3: Cross multiply
    22,511.67x = 31,067.19 × 13,561.98
  4. Step 4: Simplify right side
    22,511.67x = 421,332,609.44
  5. Step 5: Solve for x
    x = 421,332,609.44/22,511.67
  6. Step 6: Final answer
    x = 18,716.19

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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.