Home / 27,791.17-38,348.23-15,853.80

Finding the Fourth Proportional to 27,791.17, 38,348.23 and 15,853.80

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Solution

The fourth proportional to 27,791.17, 38,348.23 and 15,853.80 is: 21,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,791.17 : 38,348.23 = 15,853.80 : x
  2. Step 2: Convert to fraction form
    27,791.17/38,348.23 = 15,853.80/x
  3. Step 3: Cross multiply
    27,791.17x = 38,348.23 × 15,853.80
  4. Step 4: Simplify right side
    27,791.17x = 607,965,168.77
  5. Step 5: Solve for x
    x = 607,965,168.77/27,791.17
  6. Step 6: Final answer
    x = 21,876.20

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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.