Home / 20,170.06-27,835.41-11,218.48

Finding the Fourth Proportional to 20,170.06, 27,835.41 and 11,218.48

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Solution

The fourth proportional to 20,170.06, 27,835.41 and 11,218.48 is: 15,481.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.06 : 27,835.41 = 11,218.48 : x
  2. Step 2: Convert to fraction form
    20,170.06/27,835.41 = 11,218.48/x
  3. Step 3: Cross multiply
    20,170.06x = 27,835.41 × 11,218.48
  4. Step 4: Simplify right side
    20,170.06x = 312,270,990.38
  5. Step 5: Solve for x
    x = 312,270,990.38/20,170.06
  6. Step 6: Final answer
    x = 15,481.91

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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.