Home / 20,082.47-27,713.10-11,130.80

Finding the Fourth Proportional to 20,082.47, 27,713.10 and 11,130.80

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Solution

The fourth proportional to 20,082.47, 27,713.10 and 11,130.80 is: 15,360.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.47 : 27,713.10 = 11,130.80 : x
  2. Step 2: Convert to fraction form
    20,082.47/27,713.10 = 11,130.80/x
  3. Step 3: Cross multiply
    20,082.47x = 27,713.10 × 11,130.80
  4. Step 4: Simplify right side
    20,082.47x = 308,469,042.76
  5. Step 5: Solve for x
    x = 308,469,042.76/20,082.47
  6. Step 6: Final answer
    x = 15,360.11

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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.