Home / 21,922.97-32,876.38-7,879.25

Finding the Fourth Proportional to 21,922.97, 32,876.38 and 7,879.25

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Solution

The fourth proportional to 21,922.97, 32,876.38 and 7,879.25 is: 11,815.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.97 : 32,876.38 = 7,879.25 : x
  2. Step 2: Convert to fraction form
    21,922.97/32,876.38 = 7,879.25/x
  3. Step 3: Cross multiply
    21,922.97x = 32,876.38 × 7,879.25
  4. Step 4: Simplify right side
    21,922.97x = 259,041,217.12
  5. Step 5: Solve for x
    x = 259,041,217.12/21,922.97
  6. Step 6: Final answer
    x = 11,815.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.