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Finding the Fourth Proportional to 28,787, 43,180.50 and 8,011.04

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Solution

The fourth proportional to 28,787, 43,180.50 and 8,011.04 is: 12,016.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,787 : 43,180.50 = 8,011.04 : x
  2. Step 2: Convert to fraction form
    28,787/43,180.50 = 8,011.04/x
  3. Step 3: Cross multiply
    28,787x = 43,180.50 × 8,011.04
  4. Step 4: Simplify right side
    28,787x = 345,920,712.72
  5. Step 5: Solve for x
    x = 345,920,712.72/28,787
  6. Step 6: Final answer
    x = 12,016.56

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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.