Home / 31,650.93-43,682.42-18,222.75

Finding the Fourth Proportional to 31,650.93, 43,682.42 and 18,222.75

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Solution

The fourth proportional to 31,650.93, 43,682.42 and 18,222.75 is: 25,149.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,650.93 : 43,682.42 = 18,222.75 : x
  2. Step 2: Convert to fraction form
    31,650.93/43,682.42 = 18,222.75/x
  3. Step 3: Cross multiply
    31,650.93x = 43,682.42 × 18,222.75
  4. Step 4: Simplify right side
    31,650.93x = 796,013,864.61
  5. Step 5: Solve for x
    x = 796,013,864.61/31,650.93
  6. Step 6: Final answer
    x = 25,149.78

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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.