Home / 31,121.25-46,681.89-10,344.75

Finding the Fourth Proportional to 31,121.25, 46,681.89 and 10,344.75

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Solution

The fourth proportional to 31,121.25, 46,681.89 and 10,344.75 is: 15,517.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,121.25 : 46,681.89 = 10,344.75 : x
  2. Step 2: Convert to fraction form
    31,121.25/46,681.89 = 10,344.75/x
  3. Step 3: Cross multiply
    31,121.25x = 46,681.89 × 10,344.75
  4. Step 4: Simplify right side
    31,121.25x = 482,912,481.58
  5. Step 5: Solve for x
    x = 482,912,481.58/31,121.25
  6. Step 6: Final answer
    x = 15,517.13

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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.