Home / 18,072.20-27,102.80-4,922.84

Finding the Fourth Proportional to 18,072.20, 27,102.80 and 4,922.84

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Solution

The fourth proportional to 18,072.20, 27,102.80 and 4,922.84 is: 7,382.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,072.20 : 27,102.80 = 4,922.84 : x
  2. Step 2: Convert to fraction form
    18,072.20/27,102.80 = 4,922.84/x
  3. Step 3: Cross multiply
    18,072.20x = 27,102.80 × 4,922.84
  4. Step 4: Simplify right side
    18,072.20x = 133,422,747.95
  5. Step 5: Solve for x
    x = 133,422,747.95/18,072.20
  6. Step 6: Final answer
    x = 7,382.76

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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.