Home / 31,864.92-43,971.87-18,436.39

Finding the Fourth Proportional to 31,864.92, 43,971.87 and 18,436.39

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Solution

The fourth proportional to 31,864.92, 43,971.87 and 18,436.39 is: 25,441.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,864.92 : 43,971.87 = 18,436.39 : x
  2. Step 2: Convert to fraction form
    31,864.92/43,971.87 = 18,436.39/x
  3. Step 3: Cross multiply
    31,864.92x = 43,971.87 × 18,436.39
  4. Step 4: Simplify right side
    31,864.92x = 810,682,503.56
  5. Step 5: Solve for x
    x = 810,682,503.56/31,864.92
  6. Step 6: Final answer
    x = 25,441.22

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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.