Home / 39,218.21-54,121.82-22,222.04

Finding the Fourth Proportional to 39,218.21, 54,121.82 and 22,222.04

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Solution

The fourth proportional to 39,218.21, 54,121.82 and 22,222.04 is: 30,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,218.21 : 54,121.82 = 22,222.04 : x
  2. Step 2: Convert to fraction form
    39,218.21/54,121.82 = 22,222.04/x
  3. Step 3: Cross multiply
    39,218.21x = 54,121.82 × 22,222.04
  4. Step 4: Simplify right side
    39,218.21x = 1,202,696,867.19
  5. Step 5: Solve for x
    x = 1,202,696,867.19/39,218.21
  6. Step 6: Final answer
    x = 30,666.80

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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.