Home / 39,391.86-54,361.44-22,395.72

Finding the Fourth Proportional to 39,391.86, 54,361.44 and 22,395.72

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Solution

The fourth proportional to 39,391.86, 54,361.44 and 22,395.72 is: 30,906.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,391.86 : 54,361.44 = 22,395.72 : x
  2. Step 2: Convert to fraction form
    39,391.86/54,361.44 = 22,395.72/x
  3. Step 3: Cross multiply
    39,391.86x = 54,361.44 × 22,395.72
  4. Step 4: Simplify right side
    39,391.86x = 1,217,463,589.04
  5. Step 5: Solve for x
    x = 1,217,463,589.04/39,391.86
  6. Step 6: Final answer
    x = 30,906.48

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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.