Home / 20,197.20-27,871.92-11,244.48

Finding the Fourth Proportional to 20,197.20, 27,871.92 and 11,244.48

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Solution

The fourth proportional to 20,197.20, 27,871.92 and 11,244.48 is: 15,517.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.20 : 27,871.92 = 11,244.48 : x
  2. Step 2: Convert to fraction form
    20,197.20/27,871.92 = 11,244.48/x
  3. Step 3: Cross multiply
    20,197.20x = 27,871.92 × 11,244.48
  4. Step 4: Simplify right side
    20,197.20x = 313,405,247.00
  5. Step 5: Solve for x
    x = 313,405,247.00/20,197.20
  6. Step 6: Final answer
    x = 15,517.26

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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.