Home / 20,908.37-28,846.46-11,949.53

Finding the Fourth Proportional to 20,908.37, 28,846.46 and 11,949.53

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Solution

The fourth proportional to 20,908.37, 28,846.46 and 11,949.53 is: 16,486.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908.37 : 28,846.46 = 11,949.53 : x
  2. Step 2: Convert to fraction form
    20,908.37/28,846.46 = 11,949.53/x
  3. Step 3: Cross multiply
    20,908.37x = 28,846.46 × 11,949.53
  4. Step 4: Simplify right side
    20,908.37x = 344,701,435.18
  5. Step 5: Solve for x
    x = 344,701,435.18/20,908.37
  6. Step 6: Final answer
    x = 16,486.29

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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.