Home / 20,104.64-27,743.04-11,151.80

Finding the Fourth Proportional to 20,104.64, 27,743.04 and 11,151.80

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Solution

The fourth proportional to 20,104.64, 27,743.04 and 11,151.80 is: 15,388.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.64 : 27,743.04 = 11,151.80 : x
  2. Step 2: Convert to fraction form
    20,104.64/27,743.04 = 11,151.80/x
  3. Step 3: Cross multiply
    20,104.64x = 27,743.04 × 11,151.80
  4. Step 4: Simplify right side
    20,104.64x = 309,384,833.47
  5. Step 5: Solve for x
    x = 309,384,833.47/20,104.64
  6. Step 6: Final answer
    x = 15,388.73

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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.