Home / 39,932.78-55,107.64-22,028.42

Finding the Fourth Proportional to 39,932.78, 55,107.64 and 22,028.42

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Solution

The fourth proportional to 39,932.78, 55,107.64 and 22,028.42 is: 30,399.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,932.78 : 55,107.64 = 22,028.42 : x
  2. Step 2: Convert to fraction form
    39,932.78/55,107.64 = 22,028.42/x
  3. Step 3: Cross multiply
    39,932.78x = 55,107.64 × 22,028.42
  4. Step 4: Simplify right side
    39,932.78x = 1,213,934,239.13
  5. Step 5: Solve for x
    x = 1,213,934,239.13/39,932.78
  6. Step 6: Final answer
    x = 30,399.44

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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.