Home / 31,369.26-43,289.94-17,221.80

Finding the Fourth Proportional to 31,369.26, 43,289.94 and 17,221.80

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Solution

The fourth proportional to 31,369.26, 43,289.94 and 17,221.80 is: 23,766.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369.26 : 43,289.94 = 17,221.80 : x
  2. Step 2: Convert to fraction form
    31,369.26/43,289.94 = 17,221.80/x
  3. Step 3: Cross multiply
    31,369.26x = 43,289.94 × 17,221.80
  4. Step 4: Simplify right side
    31,369.26x = 745,530,688.69
  5. Step 5: Solve for x
    x = 745,530,688.69/31,369.26
  6. Step 6: Final answer
    x = 23,766.28

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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.