Home / 28,930.92-43,366.69-14,121.60

Finding the Fourth Proportional to 28,930.92, 43,366.69 and 14,121.60

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Solution

The fourth proportional to 28,930.92, 43,366.69 and 14,121.60 is: 21,167.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.92 : 43,366.69 = 14,121.60 : x
  2. Step 2: Convert to fraction form
    28,930.92/43,366.69 = 14,121.60/x
  3. Step 3: Cross multiply
    28,930.92x = 43,366.69 × 14,121.60
  4. Step 4: Simplify right side
    28,930.92x = 612,407,049.50
  5. Step 5: Solve for x
    x = 612,407,049.50/28,930.92
  6. Step 6: Final answer
    x = 21,167.91

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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.