Home / 28,336.54-42,506.33-8,613.61

Finding the Fourth Proportional to 28,336.54, 42,506.33 and 8,613.61

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Solution

The fourth proportional to 28,336.54, 42,506.33 and 8,613.61 is: 12,920.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.54 : 42,506.33 = 8,613.61 : x
  2. Step 2: Convert to fraction form
    28,336.54/42,506.33 = 8,613.61/x
  3. Step 3: Cross multiply
    28,336.54x = 42,506.33 × 8,613.61
  4. Step 4: Simplify right side
    28,336.54x = 366,132,949.15
  5. Step 5: Solve for x
    x = 366,132,949.15/28,336.54
  6. Step 6: Final answer
    x = 12,920.88

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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.