Home / 28,836.87-43,255.31-11,314.95

Finding the Fourth Proportional to 28,836.87, 43,255.31 and 11,314.95

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Solution

The fourth proportional to 28,836.87, 43,255.31 and 11,314.95 is: 16,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.87 : 43,255.31 = 11,314.95 : x
  2. Step 2: Convert to fraction form
    28,836.87/43,255.31 = 11,314.95/x
  3. Step 3: Cross multiply
    28,836.87x = 43,255.31 × 11,314.95
  4. Step 4: Simplify right side
    28,836.87x = 489,431,613.31
  5. Step 5: Solve for x
    x = 489,431,613.31/28,836.87
  6. Step 6: Final answer
    x = 16,972.43

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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.