Home / 20,181.18-27,850.53-11,229.57

Finding the Fourth Proportional to 20,181.18, 27,850.53 and 11,229.57

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Solution

The fourth proportional to 20,181.18, 27,850.53 and 11,229.57 is: 15,497.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.18 : 27,850.53 = 11,229.57 : x
  2. Step 2: Convert to fraction form
    20,181.18/27,850.53 = 11,229.57/x
  3. Step 3: Cross multiply
    20,181.18x = 27,850.53 × 11,229.57
  4. Step 4: Simplify right side
    20,181.18x = 312,749,518.28
  5. Step 5: Solve for x
    x = 312,749,518.28/20,181.18
  6. Step 6: Final answer
    x = 15,497.08

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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.