Home / 31,625.31-43,636.47-18,874.41

Finding the Fourth Proportional to 31,625.31, 43,636.47 and 18,874.41

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Solution

The fourth proportional to 31,625.31, 43,636.47 and 18,874.41 is: 26,042.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,625.31 : 43,636.47 = 18,874.41 : x
  2. Step 2: Convert to fraction form
    31,625.31/43,636.47 = 18,874.41/x
  3. Step 3: Cross multiply
    31,625.31x = 43,636.47 × 18,874.41
  4. Step 4: Simplify right side
    31,625.31x = 823,612,625.73
  5. Step 5: Solve for x
    x = 823,612,625.73/31,625.31
  6. Step 6: Final answer
    x = 26,042.83

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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.