Home / 31,112.44-46,654.92-8,920.78

Finding the Fourth Proportional to 31,112.44, 46,654.92 and 8,920.78

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Solution

The fourth proportional to 31,112.44, 46,654.92 and 8,920.78 is: 13,377.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,112.44 : 46,654.92 = 8,920.78 : x
  2. Step 2: Convert to fraction form
    31,112.44/46,654.92 = 8,920.78/x
  3. Step 3: Cross multiply
    31,112.44x = 46,654.92 × 8,920.78
  4. Step 4: Simplify right side
    31,112.44x = 416,198,277.24
  5. Step 5: Solve for x
    x = 416,198,277.24/31,112.44
  6. Step 6: Final answer
    x = 13,377.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.