Home / 31,367.30-43,286.94-17,221.05

Finding the Fourth Proportional to 31,367.30, 43,286.94 and 17,221.05

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Solution

The fourth proportional to 31,367.30, 43,286.94 and 17,221.05 is: 23,765.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,367.30 : 43,286.94 = 17,221.05 : x
  2. Step 2: Convert to fraction form
    31,367.30/43,286.94 = 17,221.05/x
  3. Step 3: Cross multiply
    31,367.30x = 43,286.94 × 17,221.05
  4. Step 4: Simplify right side
    31,367.30x = 745,446,558.09
  5. Step 5: Solve for x
    x = 745,446,558.09/31,367.30
  6. Step 6: Final answer
    x = 23,765.09

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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.