Home / 39,896.44-55,057.46-21,992.09

Finding the Fourth Proportional to 39,896.44, 55,057.46 and 21,992.09

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Solution

The fourth proportional to 39,896.44, 55,057.46 and 21,992.09 is: 30,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,896.44 : 55,057.46 = 21,992.09 : x
  2. Step 2: Convert to fraction form
    39,896.44/55,057.46 = 21,992.09/x
  3. Step 3: Cross multiply
    39,896.44x = 55,057.46 × 21,992.09
  4. Step 4: Simplify right side
    39,896.44x = 1,210,828,230.24
  5. Step 5: Solve for x
    x = 1,210,828,230.24/39,896.44
  6. Step 6: Final answer
    x = 30,349.28

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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.