Home / 31,369.36-43,227.20-22,391.60

Finding the Fourth Proportional to 31,369.36, 43,227.20 and 22,391.60

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Solution

The fourth proportional to 31,369.36, 43,227.20 and 22,391.60 is: 30,855.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369.36 : 43,227.20 = 22,391.60 : x
  2. Step 2: Convert to fraction form
    31,369.36/43,227.20 = 22,391.60/x
  3. Step 3: Cross multiply
    31,369.36x = 43,227.20 × 22,391.60
  4. Step 4: Simplify right side
    31,369.36x = 967,926,171.52
  5. Step 5: Solve for x
    x = 967,926,171.52/31,369.36
  6. Step 6: Final answer
    x = 30,855.78

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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.