Home / 31,177.20-46,766.07-8,990.63

Finding the Fourth Proportional to 31,177.20, 46,766.07 and 8,990.63

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Solution

The fourth proportional to 31,177.20, 46,766.07 and 8,990.63 is: 13,486.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,177.20 : 46,766.07 = 8,990.63 : x
  2. Step 2: Convert to fraction form
    31,177.20/46,766.07 = 8,990.63/x
  3. Step 3: Cross multiply
    31,177.20x = 46,766.07 × 8,990.63
  4. Step 4: Simplify right side
    31,177.20x = 420,456,198.09
  5. Step 5: Solve for x
    x = 420,456,198.09/31,177.20
  6. Step 6: Final answer
    x = 13,486.02

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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.