Home / 31,451.74-43,403.58-18,023.56

Finding the Fourth Proportional to 31,451.74, 43,403.58 and 18,023.56

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Solution

The fourth proportional to 31,451.74, 43,403.58 and 18,023.56 is: 24,872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.74 : 43,403.58 = 18,023.56 : x
  2. Step 2: Convert to fraction form
    31,451.74/43,403.58 = 18,023.56/x
  3. Step 3: Cross multiply
    31,451.74x = 43,403.58 × 18,023.56
  4. Step 4: Simplify right side
    31,451.74x = 782,286,919.84
  5. Step 5: Solve for x
    x = 782,286,919.84/31,451.74
  6. Step 6: Final answer
    x = 24,872.61

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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.