Home / 28,847.20-43,278-8,070.52

Finding the Fourth Proportional to 28,847.20, 43,278 and 8,070.52

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Solution

The fourth proportional to 28,847.20, 43,278 and 8,070.52 is: 12,107.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,847.20 : 43,278 = 8,070.52 : x
  2. Step 2: Convert to fraction form
    28,847.20/43,278 = 8,070.52/x
  3. Step 3: Cross multiply
    28,847.20x = 43,278 × 8,070.52
  4. Step 4: Simplify right side
    28,847.20x = 349,275,964.56
  5. Step 5: Solve for x
    x = 349,275,964.56/28,847.20
  6. Step 6: Final answer
    x = 12,107.79

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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.