Home / 47,446.88-71,161.68-21,146.72

Finding the Fourth Proportional to 47,446.88, 71,161.68 and 21,146.72

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Solution

The fourth proportional to 47,446.88, 71,161.68 and 21,146.72 is: 31,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,446.88 : 71,161.68 = 21,146.72 : x
  2. Step 2: Convert to fraction form
    47,446.88/71,161.68 = 21,146.72/x
  3. Step 3: Cross multiply
    47,446.88x = 71,161.68 × 21,146.72
  4. Step 4: Simplify right side
    47,446.88x = 1,504,836,121.69
  5. Step 5: Solve for x
    x = 1,504,836,121.69/47,446.88
  6. Step 6: Final answer
    x = 31,716.23

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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.