Home / 39,996.64-55,195.04-21,847.38

Finding the Fourth Proportional to 39,996.64, 55,195.04 and 21,847.38

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Solution

The fourth proportional to 39,996.64, 55,195.04 and 21,847.38 is: 30,149.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,996.64 : 55,195.04 = 21,847.38 : x
  2. Step 2: Convert to fraction form
    39,996.64/55,195.04 = 21,847.38/x
  3. Step 3: Cross multiply
    39,996.64x = 55,195.04 × 21,847.38
  4. Step 4: Simplify right side
    39,996.64x = 1,205,867,013.00
  5. Step 5: Solve for x
    x = 1,205,867,013.00/39,996.64
  6. Step 6: Final answer
    x = 30,149.21

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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.