Home / 20,079.82-30,122.49-6,933.22

Finding the Fourth Proportional to 20,079.82, 30,122.49 and 6,933.22

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Solution

The fourth proportional to 20,079.82, 30,122.49 and 6,933.22 is: 10,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.82 : 30,122.49 = 6,933.22 : x
  2. Step 2: Convert to fraction form
    20,079.82/30,122.49 = 6,933.22/x
  3. Step 3: Cross multiply
    20,079.82x = 30,122.49 × 6,933.22
  4. Step 4: Simplify right side
    20,079.82x = 208,845,850.12
  5. Step 5: Solve for x
    x = 208,845,850.12/20,079.82
  6. Step 6: Final answer
    x = 10,400.78

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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.