Home / 31,278.57-43,165.13-17,849.56

Finding the Fourth Proportional to 31,278.57, 43,165.13 and 17,849.56

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Solution

The fourth proportional to 31,278.57, 43,165.13 and 17,849.56 is: 24,632.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278.57 : 43,165.13 = 17,849.56 : x
  2. Step 2: Convert to fraction form
    31,278.57/43,165.13 = 17,849.56/x
  3. Step 3: Cross multiply
    31,278.57x = 43,165.13 × 17,849.56
  4. Step 4: Simplify right side
    31,278.57x = 770,478,380.68
  5. Step 5: Solve for x
    x = 770,478,380.68/31,278.57
  6. Step 6: Final answer
    x = 24,632.79

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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.