Home / 31,514.24-47,289.74-11,806.64

Finding the Fourth Proportional to 31,514.24, 47,289.74 and 11,806.64

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Solution

The fourth proportional to 31,514.24, 47,289.74 and 11,806.64 is: 17,716.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,514.24 : 47,289.74 = 11,806.64 : x
  2. Step 2: Convert to fraction form
    31,514.24/47,289.74 = 11,806.64/x
  3. Step 3: Cross multiply
    31,514.24x = 47,289.74 × 11,806.64
  4. Step 4: Simplify right side
    31,514.24x = 558,332,935.87
  5. Step 5: Solve for x
    x = 558,332,935.87/31,514.24
  6. Step 6: Final answer
    x = 17,716.85

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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.