Home / 28,783.20-43,174.80-8,006.70

Finding the Fourth Proportional to 28,783.20, 43,174.80 and 8,006.70

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Solution

The fourth proportional to 28,783.20, 43,174.80 and 8,006.70 is: 12,010.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,783.20 : 43,174.80 = 8,006.70 : x
  2. Step 2: Convert to fraction form
    28,783.20/43,174.80 = 8,006.70/x
  3. Step 3: Cross multiply
    28,783.20x = 43,174.80 × 8,006.70
  4. Step 4: Simplify right side
    28,783.20x = 345,687,671.16
  5. Step 5: Solve for x
    x = 345,687,671.16/28,783.20
  6. Step 6: Final answer
    x = 12,010.05

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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.