Home / 28,910.30-43,379.85-16,439.90

Finding the Fourth Proportional to 28,910.30, 43,379.85 and 16,439.90

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Solution

The fourth proportional to 28,910.30, 43,379.85 and 16,439.90 is: 24,668.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,910.30 : 43,379.85 = 16,439.90 : x
  2. Step 2: Convert to fraction form
    28,910.30/43,379.85 = 16,439.90/x
  3. Step 3: Cross multiply
    28,910.30x = 43,379.85 × 16,439.90
  4. Step 4: Simplify right side
    28,910.30x = 713,160,396.02
  5. Step 5: Solve for x
    x = 713,160,396.02/28,910.30
  6. Step 6: Final answer
    x = 24,668.04

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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.