Home / 31,361.94-43,278.21-18,793.62

Finding the Fourth Proportional to 31,361.94, 43,278.21 and 18,793.62

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Solution

The fourth proportional to 31,361.94, 43,278.21 and 18,793.62 is: 25,934.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,361.94 : 43,278.21 = 18,793.62 : x
  2. Step 2: Convert to fraction form
    31,361.94/43,278.21 = 18,793.62/x
  3. Step 3: Cross multiply
    31,361.94x = 43,278.21 × 18,793.62
  4. Step 4: Simplify right side
    31,361.94x = 813,354,233.02
  5. Step 5: Solve for x
    x = 813,354,233.02/31,361.94
  6. Step 6: Final answer
    x = 25,934.44

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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.