Home / 39,972.60-55,162.40-22,067.28

Finding the Fourth Proportional to 39,972.60, 55,162.40 and 22,067.28

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Solution

The fourth proportional to 39,972.60, 55,162.40 and 22,067.28 is: 30,452.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,972.60 : 55,162.40 = 22,067.28 : x
  2. Step 2: Convert to fraction form
    39,972.60/55,162.40 = 22,067.28/x
  3. Step 3: Cross multiply
    39,972.60x = 55,162.40 × 22,067.28
  4. Step 4: Simplify right side
    39,972.60x = 1,217,284,126.27
  5. Step 5: Solve for x
    x = 1,217,284,126.27/39,972.60
  6. Step 6: Final answer
    x = 30,452.96

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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.