Home / 39,694.24-54,778.17-21,791.08

Finding the Fourth Proportional to 39,694.24, 54,778.17 and 21,791.08

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Solution

The fourth proportional to 39,694.24, 54,778.17 and 21,791.08 is: 30,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,694.24 : 54,778.17 = 21,791.08 : x
  2. Step 2: Convert to fraction form
    39,694.24/54,778.17 = 21,791.08/x
  3. Step 3: Cross multiply
    39,694.24x = 54,778.17 × 21,791.08
  4. Step 4: Simplify right side
    39,694.24x = 1,193,675,484.72
  5. Step 5: Solve for x
    x = 1,193,675,484.72/39,694.24
  6. Step 6: Final answer
    x = 30,071.76

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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.