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Finding the Fourth Proportional to 28,850, 43,275 and 8,073.50

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Solution

The fourth proportional to 28,850, 43,275 and 8,073.50 is: 12,110.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,850 : 43,275 = 8,073.50 : x
  2. Step 2: Convert to fraction form
    28,850/43,275 = 8,073.50/x
  3. Step 3: Cross multiply
    28,850x = 43,275 × 8,073.50
  4. Step 4: Simplify right side
    28,850x = 349,380,712.50
  5. Step 5: Solve for x
    x = 349,380,712.50/28,850
  6. Step 6: Final answer
    x = 12,110.25

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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.