Home / 20,181.53-27,850.65-11,229.41

Finding the Fourth Proportional to 20,181.53, 27,850.65 and 11,229.41

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Solution

The fourth proportional to 20,181.53, 27,850.65 and 11,229.41 is: 15,496.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.53 : 27,850.65 = 11,229.41 : x
  2. Step 2: Convert to fraction form
    20,181.53/27,850.65 = 11,229.41/x
  3. Step 3: Cross multiply
    20,181.53x = 27,850.65 × 11,229.41
  4. Step 4: Simplify right side
    20,181.53x = 312,746,172.22
  5. Step 5: Solve for x
    x = 312,746,172.22/20,181.53
  6. Step 6: Final answer
    x = 15,496.66

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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.