Home / 39,971.54-55,161-22,067.71

Finding the Fourth Proportional to 39,971.54, 55,161 and 22,067.71

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Solution

The fourth proportional to 39,971.54, 55,161 and 22,067.71 is: 30,453.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,971.54 : 55,161 = 22,067.71 : x
  2. Step 2: Convert to fraction form
    39,971.54/55,161 = 22,067.71/x
  3. Step 3: Cross multiply
    39,971.54x = 55,161 × 22,067.71
  4. Step 4: Simplify right side
    39,971.54x = 1,217,276,813.41
  5. Step 5: Solve for x
    x = 1,217,276,813.41/39,971.54
  6. Step 6: Final answer
    x = 30,453.59

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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.