Home / 20,082.88-27,713.96-11,130.31

Finding the Fourth Proportional to 20,082.88, 27,713.96 and 11,130.31

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Solution

The fourth proportional to 20,082.88, 27,713.96 and 11,130.31 is: 15,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.88 : 27,713.96 = 11,130.31 : x
  2. Step 2: Convert to fraction form
    20,082.88/27,713.96 = 11,130.31/x
  3. Step 3: Cross multiply
    20,082.88x = 27,713.96 × 11,130.31
  4. Step 4: Simplify right side
    20,082.88x = 308,464,827.56
  5. Step 5: Solve for x
    x = 308,464,827.56/20,082.88
  6. Step 6: Final answer
    x = 15,359.60

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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.