Home / 31,324.26-46,981.83-9,131.68

Finding the Fourth Proportional to 31,324.26, 46,981.83 and 9,131.68

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Solution

The fourth proportional to 31,324.26, 46,981.83 and 9,131.68 is: 13,696.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,324.26 : 46,981.83 = 9,131.68 : x
  2. Step 2: Convert to fraction form
    31,324.26/46,981.83 = 9,131.68/x
  3. Step 3: Cross multiply
    31,324.26x = 46,981.83 × 9,131.68
  4. Step 4: Simplify right side
    31,324.26x = 429,023,037.37
  5. Step 5: Solve for x
    x = 429,023,037.37/31,324.26
  6. Step 6: Final answer
    x = 13,696.19

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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.