Home / 27,839.88-38,418.24-15,902.97

Finding the Fourth Proportional to 27,839.88, 38,418.24 and 15,902.97

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Solution

The fourth proportional to 27,839.88, 38,418.24 and 15,902.97 is: 21,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,839.88 : 38,418.24 = 15,902.97 : x
  2. Step 2: Convert to fraction form
    27,839.88/38,418.24 = 15,902.97/x
  3. Step 3: Cross multiply
    27,839.88x = 38,418.24 × 15,902.97
  4. Step 4: Simplify right side
    27,839.88x = 610,964,118.17
  5. Step 5: Solve for x
    x = 610,964,118.17/27,839.88
  6. Step 6: Final answer
    x = 21,945.64

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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.