Home / 20,195.27-27,869.44-11,243.55

Finding the Fourth Proportional to 20,195.27, 27,869.44 and 11,243.55

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Solution

The fourth proportional to 20,195.27, 27,869.44 and 11,243.55 is: 15,516.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.27 : 27,869.44 = 11,243.55 : x
  2. Step 2: Convert to fraction form
    20,195.27/27,869.44 = 11,243.55/x
  3. Step 3: Cross multiply
    20,195.27x = 27,869.44 × 11,243.55
  4. Step 4: Simplify right side
    20,195.27x = 313,351,385.89
  5. Step 5: Solve for x
    x = 313,351,385.89/20,195.27
  6. Step 6: Final answer
    x = 15,516.08

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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.