Home / 31,126.26-46,696.79-8,939.15

Finding the Fourth Proportional to 31,126.26, 46,696.79 and 8,939.15

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Solution

The fourth proportional to 31,126.26, 46,696.79 and 8,939.15 is: 13,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,126.26 : 46,696.79 = 8,939.15 : x
  2. Step 2: Convert to fraction form
    31,126.26/46,696.79 = 8,939.15/x
  3. Step 3: Cross multiply
    31,126.26x = 46,696.79 × 8,939.15
  4. Step 4: Simplify right side
    31,126.26x = 417,429,610.33
  5. Step 5: Solve for x
    x = 417,429,610.33/31,126.26
  6. Step 6: Final answer
    x = 13,410.85

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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.