Home / 31,768.30-43,842.26-18,340.43

Finding the Fourth Proportional to 31,768.30, 43,842.26 and 18,340.43

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Solution

The fourth proportional to 31,768.30, 43,842.26 and 18,340.43 is: 25,310.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,768.30 : 43,842.26 = 18,340.43 : x
  2. Step 2: Convert to fraction form
    31,768.30/43,842.26 = 18,340.43/x
  3. Step 3: Cross multiply
    31,768.30x = 43,842.26 × 18,340.43
  4. Step 4: Simplify right side
    31,768.30x = 804,085,727.21
  5. Step 5: Solve for x
    x = 804,085,727.21/31,768.30
  6. Step 6: Final answer
    x = 25,310.95

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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.