Home / 39,936.38-55,130.30-25,406.54

Finding the Fourth Proportional to 39,936.38, 55,130.30 and 25,406.54

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Solution

The fourth proportional to 39,936.38, 55,130.30 and 25,406.54 is: 35,072.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,936.38 : 55,130.30 = 25,406.54 : x
  2. Step 2: Convert to fraction form
    39,936.38/55,130.30 = 25,406.54/x
  3. Step 3: Cross multiply
    39,936.38x = 55,130.30 × 25,406.54
  4. Step 4: Simplify right side
    39,936.38x = 1,400,669,991.79
  5. Step 5: Solve for x
    x = 1,400,669,991.79/39,936.38
  6. Step 6: Final answer
    x = 35,072.53

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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.