Home / 31,104.89-46,629.70-12,125.15

Finding the Fourth Proportional to 31,104.89, 46,629.70 and 12,125.15

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Solution

The fourth proportional to 31,104.89, 46,629.70 and 12,125.15 is: 18,176.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,104.89 : 46,629.70 = 12,125.15 : x
  2. Step 2: Convert to fraction form
    31,104.89/46,629.70 = 12,125.15/x
  3. Step 3: Cross multiply
    31,104.89x = 46,629.70 × 12,125.15
  4. Step 4: Simplify right side
    31,104.89x = 565,391,843.49
  5. Step 5: Solve for x
    x = 565,391,843.49/31,104.89
  6. Step 6: Final answer
    x = 18,176.95

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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.