Home / 31,286.22-43,174.64-16,945.70

Finding the Fourth Proportional to 31,286.22, 43,174.64 and 16,945.70

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Solution

The fourth proportional to 31,286.22, 43,174.64 and 16,945.70 is: 23,384.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,286.22 : 43,174.64 = 16,945.70 : x
  2. Step 2: Convert to fraction form
    31,286.22/43,174.64 = 16,945.70/x
  3. Step 3: Cross multiply
    31,286.22x = 43,174.64 × 16,945.70
  4. Step 4: Simplify right side
    31,286.22x = 731,624,497.05
  5. Step 5: Solve for x
    x = 731,624,497.05/31,286.22
  6. Step 6: Final answer
    x = 23,384.88

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1.5x scale

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.