Home / 31,659.16-43,694.16-18,229.08

Finding the Fourth Proportional to 31,659.16, 43,694.16 and 18,229.08

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Solution

The fourth proportional to 31,659.16, 43,694.16 and 18,229.08 is: 25,158.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,659.16 : 43,694.16 = 18,229.08 : x
  2. Step 2: Convert to fraction form
    31,659.16/43,694.16 = 18,229.08/x
  3. Step 3: Cross multiply
    31,659.16x = 43,694.16 × 18,229.08
  4. Step 4: Simplify right side
    31,659.16x = 796,504,338.17
  5. Step 5: Solve for x
    x = 796,504,338.17/31,659.16
  6. Step 6: Final answer
    x = 25,158.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.