Home / 20,082.36-27,713.89-11,130.02

Finding the Fourth Proportional to 20,082.36, 27,713.89 and 11,130.02

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Solution

The fourth proportional to 20,082.36, 27,713.89 and 11,130.02 is: 15,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.36 : 27,713.89 = 11,130.02 : x
  2. Step 2: Convert to fraction form
    20,082.36/27,713.89 = 11,130.02/x
  3. Step 3: Cross multiply
    20,082.36x = 27,713.89 × 11,130.02
  4. Step 4: Simplify right side
    20,082.36x = 308,456,149.98
  5. Step 5: Solve for x
    x = 308,456,149.98/20,082.36
  6. Step 6: Final answer
    x = 15,359.56

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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.