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Finding the Fourth Proportional to 28,600.78, 39,469.05 and 16,025.62

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Solution

The fourth proportional to 28,600.78, 39,469.05 and 16,025.62 is: 22,115.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.78 : 39,469.05 = 16,025.62 : x
  2. Step 2: Convert to fraction form
    28,600.78/39,469.05 = 16,025.62/x
  3. Step 3: Cross multiply
    28,600.78x = 39,469.05 × 16,025.62
  4. Step 4: Simplify right side
    28,600.78x = 632,515,997.06
  5. Step 5: Solve for x
    x = 632,515,997.06/28,600.78
  6. Step 6: Final answer
    x = 22,115.34

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