Home / 20,321.97-30,462.03-11,538.33

Finding the Fourth Proportional to 20,321.97, 30,462.03 and 11,538.33

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Solution

The fourth proportional to 20,321.97, 30,462.03 and 11,538.33 is: 17,295.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321.97 : 30,462.03 = 11,538.33 : x
  2. Step 2: Convert to fraction form
    20,321.97/30,462.03 = 11,538.33/x
  3. Step 3: Cross multiply
    20,321.97x = 30,462.03 × 11,538.33
  4. Step 4: Simplify right side
    20,321.97x = 351,480,954.61
  5. Step 5: Solve for x
    x = 351,480,954.61/20,321.97
  6. Step 6: Final answer
    x = 17,295.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.