Home / 20,242.08-30,363.66-5,450.99

Finding the Fourth Proportional to 20,242.08, 30,363.66 and 5,450.99

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Solution

The fourth proportional to 20,242.08, 30,363.66 and 5,450.99 is: 8,176.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.08 : 30,363.66 = 5,450.99 : x
  2. Step 2: Convert to fraction form
    20,242.08/30,363.66 = 5,450.99/x
  3. Step 3: Cross multiply
    20,242.08x = 30,363.66 × 5,450.99
  4. Step 4: Simplify right side
    20,242.08x = 165,511,855.21
  5. Step 5: Solve for x
    x = 165,511,855.21/20,242.08
  6. Step 6: Final answer
    x = 8,176.62

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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.