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Finding the Fourth Proportional to 28,827, 39,760.62 and 18,736.62

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Solution

The fourth proportional to 28,827, 39,760.62 and 18,736.62 is: 25,843.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,827 : 39,760.62 = 18,736.62 : x
  2. Step 2: Convert to fraction form
    28,827/39,760.62 = 18,736.62/x
  3. Step 3: Cross multiply
    28,827x = 39,760.62 × 18,736.62
  4. Step 4: Simplify right side
    28,827x = 744,979,627.90
  5. Step 5: Solve for x
    x = 744,979,627.90/28,827
  6. Step 6: Final answer
    x = 25,843.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.