Home / 31,278.33-43,153.38-17,839.92

Finding the Fourth Proportional to 31,278.33, 43,153.38 and 17,839.92

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Solution

The fourth proportional to 31,278.33, 43,153.38 and 17,839.92 is: 24,612.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278.33 : 43,153.38 = 17,839.92 : x
  2. Step 2: Convert to fraction form
    31,278.33/43,153.38 = 17,839.92/x
  3. Step 3: Cross multiply
    31,278.33x = 43,153.38 × 17,839.92
  4. Step 4: Simplify right side
    31,278.33x = 769,852,846.93
  5. Step 5: Solve for x
    x = 769,852,846.93/31,278.33
  6. Step 6: Final answer
    x = 24,612.98

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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.