Home / 20,104.08-27,743.10-11,151.56

Finding the Fourth Proportional to 20,104.08, 27,743.10 and 11,151.56

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Solution

The fourth proportional to 20,104.08, 27,743.10 and 11,151.56 is: 15,388.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.08 : 27,743.10 = 11,151.56 : x
  2. Step 2: Convert to fraction form
    20,104.08/27,743.10 = 11,151.56/x
  3. Step 3: Cross multiply
    20,104.08x = 27,743.10 × 11,151.56
  4. Step 4: Simplify right side
    20,104.08x = 309,378,844.24
  5. Step 5: Solve for x
    x = 309,378,844.24/20,104.08
  6. Step 6: Final answer
    x = 15,388.86

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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.