Home / 20,181.61-27,850.20-11,685.24

Finding the Fourth Proportional to 20,181.61, 27,850.20 and 11,685.24

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Solution

The fourth proportional to 20,181.61, 27,850.20 and 11,685.24 is: 16,125.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.61 : 27,850.20 = 11,685.24 : x
  2. Step 2: Convert to fraction form
    20,181.61/27,850.20 = 11,685.24/x
  3. Step 3: Cross multiply
    20,181.61x = 27,850.20 × 11,685.24
  4. Step 4: Simplify right side
    20,181.61x = 325,436,317.44
  5. Step 5: Solve for x
    x = 325,436,317.44/20,181.61
  6. Step 6: Final answer
    x = 16,125.39

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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.