Home / 31,650.74-43,682.15-18,222.56

Finding the Fourth Proportional to 31,650.74, 43,682.15 and 18,222.56

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Solution

The fourth proportional to 31,650.74, 43,682.15 and 18,222.56 is: 25,149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,650.74 : 43,682.15 = 18,222.56 : x
  2. Step 2: Convert to fraction form
    31,650.74/43,682.15 = 18,222.56/x
  3. Step 3: Cross multiply
    31,650.74x = 43,682.15 × 18,222.56
  4. Step 4: Simplify right side
    31,650.74x = 796,000,599.30
  5. Step 5: Solve for x
    x = 796,000,599.30/31,650.74
  6. Step 6: Final answer
    x = 25,149.51

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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.