Home / 20,180.82-27,841.41-12,724.50

Finding the Fourth Proportional to 20,180.82, 27,841.41 and 12,724.50

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Solution

The fourth proportional to 20,180.82, 27,841.41 and 12,724.50 is: 17,554.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.82 : 27,841.41 = 12,724.50 : x
  2. Step 2: Convert to fraction form
    20,180.82/27,841.41 = 12,724.50/x
  3. Step 3: Cross multiply
    20,180.82x = 27,841.41 × 12,724.50
  4. Step 4: Simplify right side
    20,180.82x = 354,268,021.55
  5. Step 5: Solve for x
    x = 354,268,021.55/20,180.82
  6. Step 6: Final answer
    x = 17,554.69

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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.