Home / 28,781.25-43,174.32-8,004.75

Finding the Fourth Proportional to 28,781.25, 43,174.32 and 8,004.75

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Solution

The fourth proportional to 28,781.25, 43,174.32 and 8,004.75 is: 12,007.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.25 : 43,174.32 = 8,004.75 : x
  2. Step 2: Convert to fraction form
    28,781.25/43,174.32 = 8,004.75/x
  3. Step 3: Cross multiply
    28,781.25x = 43,174.32 × 8,004.75
  4. Step 4: Simplify right side
    28,781.25x = 345,599,638.02
  5. Step 5: Solve for x
    x = 345,599,638.02/28,781.25
  6. Step 6: Final answer
    x = 12,007.81

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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.