Home / 31,179.93-43,028.30-16,839.77

Finding the Fourth Proportional to 31,179.93, 43,028.30 and 16,839.77

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Solution

The fourth proportional to 31,179.93, 43,028.30 and 16,839.77 is: 23,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,179.93 : 43,028.30 = 16,839.77 : x
  2. Step 2: Convert to fraction form
    31,179.93/43,028.30 = 16,839.77/x
  3. Step 3: Cross multiply
    31,179.93x = 43,028.30 × 16,839.77
  4. Step 4: Simplify right side
    31,179.93x = 724,586,675.49
  5. Step 5: Solve for x
    x = 724,586,675.49/31,179.93
  6. Step 6: Final answer
    x = 23,238.88

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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.