Home / 20,177.39-27,828.22-17,910.39

Finding the Fourth Proportional to 20,177.39, 27,828.22 and 17,910.39

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Solution

The fourth proportional to 20,177.39, 27,828.22 and 17,910.39 is: 24,701.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.39 : 27,828.22 = 17,910.39 : x
  2. Step 2: Convert to fraction form
    20,177.39/27,828.22 = 17,910.39/x
  3. Step 3: Cross multiply
    20,177.39x = 27,828.22 × 17,910.39
  4. Step 4: Simplify right side
    20,177.39x = 498,414,120.33
  5. Step 5: Solve for x
    x = 498,414,120.33/20,177.39
  6. Step 6: Final answer
    x = 24,701.61

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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.