Home / 20,100.44-27,736.79-11,147.92

Finding the Fourth Proportional to 20,100.44, 27,736.79 and 11,147.92

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Solution

The fourth proportional to 20,100.44, 27,736.79 and 11,147.92 is: 15,383.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.44 : 27,736.79 = 11,147.92 : x
  2. Step 2: Convert to fraction form
    20,100.44/27,736.79 = 11,147.92/x
  3. Step 3: Cross multiply
    20,100.44x = 27,736.79 × 11,147.92
  4. Step 4: Simplify right side
    20,100.44x = 309,207,515.98
  5. Step 5: Solve for x
    x = 309,207,515.98/20,100.44
  6. Step 6: Final answer
    x = 15,383.12

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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.