Home / 31,116.52-46,640.22-12,391.66

Finding the Fourth Proportional to 31,116.52, 46,640.22 and 12,391.66

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Solution

The fourth proportional to 31,116.52, 46,640.22 and 12,391.66 is: 18,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,116.52 : 46,640.22 = 12,391.66 : x
  2. Step 2: Convert to fraction form
    31,116.52/46,640.22 = 12,391.66/x
  3. Step 3: Cross multiply
    31,116.52x = 46,640.22 × 12,391.66
  4. Step 4: Simplify right side
    31,116.52x = 577,949,748.57
  5. Step 5: Solve for x
    x = 577,949,748.57/31,116.52
  6. Step 6: Final answer
    x = 18,573.73

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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.