Home / 39,968.82-55,163.70-38,197.38

Finding the Fourth Proportional to 39,968.82, 55,163.70 and 38,197.38

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Solution

The fourth proportional to 39,968.82, 55,163.70 and 38,197.38 is: 52,718.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,968.82 : 55,163.70 = 38,197.38 : x
  2. Step 2: Convert to fraction form
    39,968.82/55,163.70 = 38,197.38/x
  3. Step 3: Cross multiply
    39,968.82x = 55,163.70 × 38,197.38
  4. Step 4: Simplify right side
    39,968.82x = 2,107,108,811.11
  5. Step 5: Solve for x
    x = 2,107,108,811.11/39,968.82
  6. Step 6: Final answer
    x = 52,718.81

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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.