Home / 38,554.18-57,791.88-21,879

Finding the Fourth Proportional to 38,554.18, 57,791.88 and 21,879

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Solution

The fourth proportional to 38,554.18, 57,791.88 and 21,879 is: 32,796.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,554.18 : 57,791.88 = 21,879 : x
  2. Step 2: Convert to fraction form
    38,554.18/57,791.88 = 21,879/x
  3. Step 3: Cross multiply
    38,554.18x = 57,791.88 × 21,879
  4. Step 4: Simplify right side
    38,554.18x = 1,264,428,542.52
  5. Step 5: Solve for x
    x = 1,264,428,542.52/38,554.18
  6. Step 6: Final answer
    x = 32,796.15

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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.