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Finding the Fourth Proportional to 28,788, 43,182 and 8,012.04

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Solution

The fourth proportional to 28,788, 43,182 and 8,012.04 is: 12,018.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788 : 43,182 = 8,012.04 : x
  2. Step 2: Convert to fraction form
    28,788/43,182 = 8,012.04/x
  3. Step 3: Cross multiply
    28,788x = 43,182 × 8,012.04
  4. Step 4: Simplify right side
    28,788x = 345,975,911.28
  5. Step 5: Solve for x
    x = 345,975,911.28/28,788
  6. Step 6: Final answer
    x = 12,018.06

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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.