Home / 28,780.62-43,170.68-8,004.06

Finding the Fourth Proportional to 28,780.62, 43,170.68 and 8,004.06

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Solution

The fourth proportional to 28,780.62, 43,170.68 and 8,004.06 is: 12,006.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.62 : 43,170.68 = 8,004.06 : x
  2. Step 2: Convert to fraction form
    28,780.62/43,170.68 = 8,004.06/x
  3. Step 3: Cross multiply
    28,780.62x = 43,170.68 × 8,004.06
  4. Step 4: Simplify right side
    28,780.62x = 345,540,712.96
  5. Step 5: Solve for x
    x = 345,540,712.96/28,780.62
  6. Step 6: Final answer
    x = 12,006.02

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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.