Home / 39,936.78-55,137.51-28,048.14

Finding the Fourth Proportional to 39,936.78, 55,137.51 and 28,048.14

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Solution

The fourth proportional to 39,936.78, 55,137.51 and 28,048.14 is: 38,723.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,936.78 : 55,137.51 = 28,048.14 : x
  2. Step 2: Convert to fraction form
    39,936.78/55,137.51 = 28,048.14/x
  3. Step 3: Cross multiply
    39,936.78x = 55,137.51 × 28,048.14
  4. Step 4: Simplify right side
    39,936.78x = 1,546,504,599.73
  5. Step 5: Solve for x
    x = 1,546,504,599.73/39,936.78
  6. Step 6: Final answer
    x = 38,723.82

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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.