Home / 31,990.62-44,191.68-30,309.06

Finding the Fourth Proportional to 31,990.62, 44,191.68 and 30,309.06

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Solution

The fourth proportional to 31,990.62, 44,191.68 and 30,309.06 is: 41,868.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,990.62 : 44,191.68 = 30,309.06 : x
  2. Step 2: Convert to fraction form
    31,990.62/44,191.68 = 30,309.06/x
  3. Step 3: Cross multiply
    31,990.62x = 44,191.68 × 30,309.06
  4. Step 4: Simplify right side
    31,990.62x = 1,339,408,280.62
  5. Step 5: Solve for x
    x = 1,339,408,280.62/31,990.62
  6. Step 6: Final answer
    x = 41,868.78

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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.