Home / 28,796.75-43,195.13-12,380.75

Finding the Fourth Proportional to 28,796.75, 43,195.13 and 12,380.75

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Solution

The fourth proportional to 28,796.75, 43,195.13 and 12,380.75 is: 18,571.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,796.75 : 43,195.13 = 12,380.75 : x
  2. Step 2: Convert to fraction form
    28,796.75/43,195.13 = 12,380.75/x
  3. Step 3: Cross multiply
    28,796.75x = 43,195.13 × 12,380.75
  4. Step 4: Simplify right side
    28,796.75x = 534,788,105.75
  5. Step 5: Solve for x
    x = 534,788,105.75/28,796.75
  6. Step 6: Final answer
    x = 18,571.13

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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.