Home / 28,778.63-43,170.38-8,002.13

Finding the Fourth Proportional to 28,778.63, 43,170.38 and 8,002.13

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Solution

The fourth proportional to 28,778.63, 43,170.38 and 8,002.13 is: 12,003.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778.63 : 43,170.38 = 8,002.13 : x
  2. Step 2: Convert to fraction form
    28,778.63/43,170.38 = 8,002.13/x
  3. Step 3: Cross multiply
    28,778.63x = 43,170.38 × 8,002.13
  4. Step 4: Simplify right side
    28,778.63x = 345,454,797.06
  5. Step 5: Solve for x
    x = 345,454,797.06/28,778.63
  6. Step 6: Final answer
    x = 12,003.87

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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.