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Finding the Fourth Proportional to 28,978.29, 43,458.21 and 14,933.97

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Solution

The fourth proportional to 28,978.29, 43,458.21 and 14,933.97 is: 22,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,978.29 : 43,458.21 = 14,933.97 : x
  2. Step 2: Convert to fraction form
    28,978.29/43,458.21 = 14,933.97/x
  3. Step 3: Cross multiply
    28,978.29x = 43,458.21 × 14,933.97
  4. Step 4: Simplify right side
    28,978.29x = 649,003,604.39
  5. Step 5: Solve for x
    x = 649,003,604.39/28,978.29
  6. Step 6: Final answer
    x = 22,396.20

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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.