Home / 20,081.52-27,716.38-11,589.13

Finding the Fourth Proportional to 20,081.52, 27,716.38 and 11,589.13

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Solution

The fourth proportional to 20,081.52, 27,716.38 and 11,589.13 is: 15,995.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.52 : 27,716.38 = 11,589.13 : x
  2. Step 2: Convert to fraction form
    20,081.52/27,716.38 = 11,589.13/x
  3. Step 3: Cross multiply
    20,081.52x = 27,716.38 × 11,589.13
  4. Step 4: Simplify right side
    20,081.52x = 321,208,580.72
  5. Step 5: Solve for x
    x = 321,208,580.72/20,081.52
  6. Step 6: Final answer
    x = 15,995.23

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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.