Home / 39,906.96-55,069.12-22,002.16

Finding the Fourth Proportional to 39,906.96, 55,069.12 and 22,002.16

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Solution

The fourth proportional to 39,906.96, 55,069.12 and 22,002.16 is: 30,361.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,906.96 : 55,069.12 = 22,002.16 : x
  2. Step 2: Convert to fraction form
    39,906.96/55,069.12 = 22,002.16/x
  3. Step 3: Cross multiply
    39,906.96x = 55,069.12 × 22,002.16
  4. Step 4: Simplify right side
    39,906.96x = 1,211,639,589.30
  5. Step 5: Solve for x
    x = 1,211,639,589.30/39,906.96
  6. Step 6: Final answer
    x = 30,361.61

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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.