Home / 39,922.86-55,105.04-27,989.12

Finding the Fourth Proportional to 39,922.86, 55,105.04 and 27,989.12

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Solution

The fourth proportional to 39,922.86, 55,105.04 and 27,989.12 is: 38,633.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,922.86 : 55,105.04 = 27,989.12 : x
  2. Step 2: Convert to fraction form
    39,922.86/55,105.04 = 27,989.12/x
  3. Step 3: Cross multiply
    39,922.86x = 55,105.04 × 27,989.12
  4. Step 4: Simplify right side
    39,922.86x = 1,542,341,577.16
  5. Step 5: Solve for x
    x = 1,542,341,577.16/39,922.86
  6. Step 6: Final answer
    x = 38,633.04

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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.