Home / 31,608.11-43,625.32-20,291.92

Finding the Fourth Proportional to 31,608.11, 43,625.32 and 20,291.92

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Solution

The fourth proportional to 31,608.11, 43,625.32 and 20,291.92 is: 28,006.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,608.11 : 43,625.32 = 20,291.92 : x
  2. Step 2: Convert to fraction form
    31,608.11/43,625.32 = 20,291.92/x
  3. Step 3: Cross multiply
    31,608.11x = 43,625.32 × 20,291.92
  4. Step 4: Simplify right side
    31,608.11x = 885,241,343.62
  5. Step 5: Solve for x
    x = 885,241,343.62/31,608.11
  6. Step 6: Final answer
    x = 28,006.78

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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.