Home / 28,183.92-42,263.44-8,458.70

Finding the Fourth Proportional to 28,183.92, 42,263.44 and 8,458.70

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Solution

The fourth proportional to 28,183.92, 42,263.44 and 8,458.70 is: 12,684.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,183.92 : 42,263.44 = 8,458.70 : x
  2. Step 2: Convert to fraction form
    28,183.92/42,263.44 = 8,458.70/x
  3. Step 3: Cross multiply
    28,183.92x = 42,263.44 × 8,458.70
  4. Step 4: Simplify right side
    28,183.92x = 357,493,759.93
  5. Step 5: Solve for x
    x = 357,493,759.93/28,183.92
  6. Step 6: Final answer
    x = 12,684.32

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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.