Home / 29,183.80-43,816.20-18,718.60

Finding the Fourth Proportional to 29,183.80, 43,816.20 and 18,718.60

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Solution

The fourth proportional to 29,183.80, 43,816.20 and 18,718.60 is: 28,103.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,183.80 : 43,816.20 = 18,718.60 : x
  2. Step 2: Convert to fraction form
    29,183.80/43,816.20 = 18,718.60/x
  3. Step 3: Cross multiply
    29,183.80x = 43,816.20 × 18,718.60
  4. Step 4: Simplify right side
    29,183.80x = 820,177,921.32
  5. Step 5: Solve for x
    x = 820,177,921.32/29,183.80
  6. Step 6: Final answer
    x = 28,103.88

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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.