Home / 39,930.78-55,104.87-22,026.42

Finding the Fourth Proportional to 39,930.78, 55,104.87 and 22,026.42

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Solution

The fourth proportional to 39,930.78, 55,104.87 and 22,026.42 is: 30,396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930.78 : 55,104.87 = 22,026.42 : x
  2. Step 2: Convert to fraction form
    39,930.78/55,104.87 = 22,026.42/x
  3. Step 3: Cross multiply
    39,930.78x = 55,104.87 × 22,026.42
  4. Step 4: Simplify right side
    39,930.78x = 1,213,763,010.67
  5. Step 5: Solve for x
    x = 1,213,763,010.67/39,930.78
  6. Step 6: Final answer
    x = 30,396.68

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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.