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Finding the Fourth Proportional to 28,967, 43,458.02 and 8,190.52

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Solution

The fourth proportional to 28,967, 43,458.02 and 8,190.52 is: 12,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,967 : 43,458.02 = 8,190.52 : x
  2. Step 2: Convert to fraction form
    28,967/43,458.02 = 8,190.52/x
  3. Step 3: Cross multiply
    28,967x = 43,458.02 × 8,190.52
  4. Step 4: Simplify right side
    28,967x = 355,943,781.97
  5. Step 5: Solve for x
    x = 355,943,781.97/28,967
  6. Step 6: Final answer
    x = 12,287.91

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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.