Home / 31,422.06-43,347.60-19,481.04

Finding the Fourth Proportional to 31,422.06, 43,347.60 and 19,481.04

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Solution

The fourth proportional to 31,422.06, 43,347.60 and 19,481.04 is: 26,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,422.06 : 43,347.60 = 19,481.04 : x
  2. Step 2: Convert to fraction form
    31,422.06/43,347.60 = 19,481.04/x
  3. Step 3: Cross multiply
    31,422.06x = 43,347.60 × 19,481.04
  4. Step 4: Simplify right side
    31,422.06x = 844,456,329.50
  5. Step 5: Solve for x
    x = 844,456,329.50/31,422.06
  6. Step 6: Final answer
    x = 26,874.63

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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.