Home / 31,121.23-46,566.99-18,650.05

Finding the Fourth Proportional to 31,121.23, 46,566.99 and 18,650.05

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Solution

The fourth proportional to 31,121.23, 46,566.99 and 18,650.05 is: 27,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,121.23 : 46,566.99 = 18,650.05 : x
  2. Step 2: Convert to fraction form
    31,121.23/46,566.99 = 18,650.05/x
  3. Step 3: Cross multiply
    31,121.23x = 46,566.99 × 18,650.05
  4. Step 4: Simplify right side
    31,121.23x = 868,476,691.85
  5. Step 5: Solve for x
    x = 868,476,691.85/31,121.23
  6. Step 6: Final answer
    x = 27,906.25

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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.