Home / 31,334.80-43,227.12-18,757.12

Finding the Fourth Proportional to 31,334.80, 43,227.12 and 18,757.12

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Solution

The fourth proportional to 31,334.80, 43,227.12 and 18,757.12 is: 25,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,334.80 : 43,227.12 = 18,757.12 : x
  2. Step 2: Convert to fraction form
    31,334.80/43,227.12 = 18,757.12/x
  3. Step 3: Cross multiply
    31,334.80x = 43,227.12 × 18,757.12
  4. Step 4: Simplify right side
    31,334.80x = 810,816,277.09
  5. Step 5: Solve for x
    x = 810,816,277.09/31,334.80
  6. Step 6: Final answer
    x = 25,875.90

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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.