Home / 39,991.78-55,199.35-22,997.89

Finding the Fourth Proportional to 39,991.78, 55,199.35 and 22,997.89

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Solution

The fourth proportional to 39,991.78, 55,199.35 and 22,997.89 is: 31,743.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,991.78 : 55,199.35 = 22,997.89 : x
  2. Step 2: Convert to fraction form
    39,991.78/55,199.35 = 22,997.89/x
  3. Step 3: Cross multiply
    39,991.78x = 55,199.35 × 22,997.89
  4. Step 4: Simplify right side
    39,991.78x = 1,269,468,579.37
  5. Step 5: Solve for x
    x = 1,269,468,579.37/39,991.78
  6. Step 6: Final answer
    x = 31,743.24

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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.