Home / 20,082.98-27,713.18-11,131.31

Finding the Fourth Proportional to 20,082.98, 27,713.18 and 11,131.31

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Solution

The fourth proportional to 20,082.98, 27,713.18 and 11,131.31 is: 15,360.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.98 : 27,713.18 = 11,131.31 : x
  2. Step 2: Convert to fraction form
    20,082.98/27,713.18 = 11,131.31/x
  3. Step 3: Cross multiply
    20,082.98x = 27,713.18 × 11,131.31
  4. Step 4: Simplify right side
    20,082.98x = 308,483,803.44
  5. Step 5: Solve for x
    x = 308,483,803.44/20,082.98
  6. Step 6: Final answer
    x = 15,360.46

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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.