Home / 20,081.39-27,716.22-11,589.03

Finding the Fourth Proportional to 20,081.39, 27,716.22 and 11,589.03

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Solution

The fourth proportional to 20,081.39, 27,716.22 and 11,589.03 is: 15,995.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.39 : 27,716.22 = 11,589.03 : x
  2. Step 2: Convert to fraction form
    20,081.39/27,716.22 = 11,589.03/x
  3. Step 3: Cross multiply
    20,081.39x = 27,716.22 × 11,589.03
  4. Step 4: Simplify right side
    20,081.39x = 321,204,105.07
  5. Step 5: Solve for x
    x = 321,204,105.07/20,081.39
  6. Step 6: Final answer
    x = 15,995.12

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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.