Home / 28,886.38-43,336.86-8,109.88

Finding the Fourth Proportional to 28,886.38, 43,336.86 and 8,109.88

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Solution

The fourth proportional to 28,886.38, 43,336.86 and 8,109.88 is: 12,166.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.38 : 43,336.86 = 8,109.88 : x
  2. Step 2: Convert to fraction form
    28,886.38/43,336.86 = 8,109.88/x
  3. Step 3: Cross multiply
    28,886.38x = 43,336.86 × 8,109.88
  4. Step 4: Simplify right side
    28,886.38x = 351,456,734.18
  5. Step 5: Solve for x
    x = 351,456,734.18/28,886.38
  6. Step 6: Final answer
    x = 12,166.87

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1.5x scale

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.