Home / 39,991.28-55,198.66-22,997.39

Finding the Fourth Proportional to 39,991.28, 55,198.66 and 22,997.39

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Solution

The fourth proportional to 39,991.28, 55,198.66 and 22,997.39 is: 31,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,991.28 : 55,198.66 = 22,997.39 : x
  2. Step 2: Convert to fraction form
    39,991.28/55,198.66 = 22,997.39/x
  3. Step 3: Cross multiply
    39,991.28x = 55,198.66 × 22,997.39
  4. Step 4: Simplify right side
    39,991.28x = 1,269,425,111.50
  5. Step 5: Solve for x
    x = 1,269,425,111.50/39,991.28
  6. Step 6: Final answer
    x = 31,742.55

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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.