Home / 28,399.21-39,190.94-16,469.48

Finding the Fourth Proportional to 28,399.21, 39,190.94 and 16,469.48

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Solution

The fourth proportional to 28,399.21, 39,190.94 and 16,469.48 is: 22,727.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,399.21 : 39,190.94 = 16,469.48 : x
  2. Step 2: Convert to fraction form
    28,399.21/39,190.94 = 16,469.48/x
  3. Step 3: Cross multiply
    28,399.21x = 39,190.94 × 16,469.48
  4. Step 4: Simplify right side
    28,399.21x = 645,454,259.45
  5. Step 5: Solve for x
    x = 645,454,259.45/28,399.21
  6. Step 6: Final answer
    x = 22,727.90

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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.