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Finding the Fourth Proportional to 27,079.48, 40,619.22 and 10,447.30

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Solution

The fourth proportional to 27,079.48, 40,619.22 and 10,447.30 is: 15,670.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,079.48 : 40,619.22 = 10,447.30 : x
  2. Step 2: Convert to fraction form
    27,079.48/40,619.22 = 10,447.30/x
  3. Step 3: Cross multiply
    27,079.48x = 40,619.22 × 10,447.30
  4. Step 4: Simplify right side
    27,079.48x = 424,361,177.11
  5. Step 5: Solve for x
    x = 424,361,177.11/27,079.48
  6. Step 6: Final answer
    x = 15,670.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.