Home / 21,912.20-32,850.30-9,441.80

Finding the Fourth Proportional to 21,912.20, 32,850.30 and 9,441.80

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Solution

The fourth proportional to 21,912.20, 32,850.30 and 9,441.80 is: 14,154.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,912.20 : 32,850.30 = 9,441.80 : x
  2. Step 2: Convert to fraction form
    21,912.20/32,850.30 = 9,441.80/x
  3. Step 3: Cross multiply
    21,912.20x = 32,850.30 × 9,441.80
  4. Step 4: Simplify right side
    21,912.20x = 310,165,962.54
  5. Step 5: Solve for x
    x = 310,165,962.54/21,912.20
  6. Step 6: Final answer
    x = 14,154.94

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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.