Home / 27,621.47-38,140.11-22,517.79

Finding the Fourth Proportional to 27,621.47, 38,140.11 and 22,517.79

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Solution

The fourth proportional to 27,621.47, 38,140.11 and 22,517.79 is: 31,092.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.47 : 38,140.11 = 22,517.79 : x
  2. Step 2: Convert to fraction form
    27,621.47/38,140.11 = 22,517.79/x
  3. Step 3: Cross multiply
    27,621.47x = 38,140.11 × 22,517.79
  4. Step 4: Simplify right side
    27,621.47x = 858,830,987.56
  5. Step 5: Solve for x
    x = 858,830,987.56/27,621.47
  6. Step 6: Final answer
    x = 31,092.88

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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.