Home / 31,816.06-43,910.19-19,240.78

Finding the Fourth Proportional to 31,816.06, 43,910.19 and 19,240.78

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Solution

The fourth proportional to 31,816.06, 43,910.19 and 19,240.78 is: 26,554.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,816.06 : 43,910.19 = 19,240.78 : x
  2. Step 2: Convert to fraction form
    31,816.06/43,910.19 = 19,240.78/x
  3. Step 3: Cross multiply
    31,816.06x = 43,910.19 × 19,240.78
  4. Step 4: Simplify right side
    31,816.06x = 844,866,305.55
  5. Step 5: Solve for x
    x = 844,866,305.55/31,816.06
  6. Step 6: Final answer
    x = 26,554.71

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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.