Home / 39,857.41-59,822.97-20,149.71

Finding the Fourth Proportional to 39,857.41, 59,822.97 and 20,149.71

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Solution

The fourth proportional to 39,857.41, 59,822.97 and 20,149.71 is: 30,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,857.41 : 59,822.97 = 20,149.71 : x
  2. Step 2: Convert to fraction form
    39,857.41/59,822.97 = 20,149.71/x
  3. Step 3: Cross multiply
    39,857.41x = 59,822.97 × 20,149.71
  4. Step 4: Simplify right side
    39,857.41x = 1,205,415,496.84
  5. Step 5: Solve for x
    x = 1,205,415,496.84/39,857.41
  6. Step 6: Final answer
    x = 30,243.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.