Home / 28,781.04-43,171.64-8,004.56

Finding the Fourth Proportional to 28,781.04, 43,171.64 and 8,004.56

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Solution

The fourth proportional to 28,781.04, 43,171.64 and 8,004.56 is: 12,006.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.04 : 43,171.64 = 8,004.56 : x
  2. Step 2: Convert to fraction form
    28,781.04/43,171.64 = 8,004.56/x
  3. Step 3: Cross multiply
    28,781.04x = 43,171.64 × 8,004.56
  4. Step 4: Simplify right side
    28,781.04x = 345,569,982.68
  5. Step 5: Solve for x
    x = 345,569,982.68/28,781.04
  6. Step 6: Final answer
    x = 12,006.86

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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.