Home / 31,708.68-43,758.30-19,131

Finding the Fourth Proportional to 31,708.68, 43,758.30 and 19,131

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Solution

The fourth proportional to 31,708.68, 43,758.30 and 19,131 is: 26,400.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,708.68 : 43,758.30 = 19,131 : x
  2. Step 2: Convert to fraction form
    31,708.68/43,758.30 = 19,131/x
  3. Step 3: Cross multiply
    31,708.68x = 43,758.30 × 19,131
  4. Step 4: Simplify right side
    31,708.68x = 837,140,037.30
  5. Step 5: Solve for x
    x = 837,140,037.30/31,708.68
  6. Step 6: Final answer
    x = 26,400.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.