Home / 31,551.03-43,542.77-18,122.85

Finding the Fourth Proportional to 31,551.03, 43,542.77 and 18,122.85

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Solution

The fourth proportional to 31,551.03, 43,542.77 and 18,122.85 is: 25,010.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,551.03 : 43,542.77 = 18,122.85 : x
  2. Step 2: Convert to fraction form
    31,551.03/43,542.77 = 18,122.85/x
  3. Step 3: Cross multiply
    31,551.03x = 43,542.77 × 18,122.85
  4. Step 4: Simplify right side
    31,551.03x = 789,118,998.68
  5. Step 5: Solve for x
    x = 789,118,998.68/31,551.03
  6. Step 6: Final answer
    x = 25,010.88

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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.