Home / 28,757.20-39,684.92-16,181.96

Finding the Fourth Proportional to 28,757.20, 39,684.92 and 16,181.96

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Solution

The fourth proportional to 28,757.20, 39,684.92 and 16,181.96 is: 22,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.20 : 39,684.92 = 16,181.96 : x
  2. Step 2: Convert to fraction form
    28,757.20/39,684.92 = 16,181.96/x
  3. Step 3: Cross multiply
    28,757.20x = 39,684.92 × 16,181.96
  4. Step 4: Simplify right side
    28,757.20x = 642,179,788.04
  5. Step 5: Solve for x
    x = 642,179,788.04/28,757.20
  6. Step 6: Final answer
    x = 22,331.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.