Home / 27,391.38-37,791.27-21,630.56

Finding the Fourth Proportional to 27,391.38, 37,791.27 and 21,630.56

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Solution

The fourth proportional to 27,391.38, 37,791.27 and 21,630.56 is: 29,843.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,391.38 : 37,791.27 = 21,630.56 : x
  2. Step 2: Convert to fraction form
    27,391.38/37,791.27 = 21,630.56/x
  3. Step 3: Cross multiply
    27,391.38x = 37,791.27 × 21,630.56
  4. Step 4: Simplify right side
    27,391.38x = 817,446,144.25
  5. Step 5: Solve for x
    x = 817,446,144.25/27,391.38
  6. Step 6: Final answer
    x = 29,843.19

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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.