Home / 20,082.95-27,713.76-11,131.29

Finding the Fourth Proportional to 20,082.95, 27,713.76 and 11,131.29

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Solution

The fourth proportional to 20,082.95, 27,713.76 and 11,131.29 is: 15,360.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.95 : 27,713.76 = 11,131.29 : x
  2. Step 2: Convert to fraction form
    20,082.95/27,713.76 = 11,131.29/x
  3. Step 3: Cross multiply
    20,082.95x = 27,713.76 × 11,131.29
  4. Step 4: Simplify right side
    20,082.95x = 308,489,760.98
  5. Step 5: Solve for x
    x = 308,489,760.98/20,082.95
  6. Step 6: Final answer
    x = 15,360.78

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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.