Home / 20,039.79-27,652.41-11,086.05

Finding the Fourth Proportional to 20,039.79, 27,652.41 and 11,086.05

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Solution

The fourth proportional to 20,039.79, 27,652.41 and 11,086.05 is: 15,297.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.79 : 27,652.41 = 11,086.05 : x
  2. Step 2: Convert to fraction form
    20,039.79/27,652.41 = 11,086.05/x
  3. Step 3: Cross multiply
    20,039.79x = 27,652.41 × 11,086.05
  4. Step 4: Simplify right side
    20,039.79x = 306,555,999.88
  5. Step 5: Solve for x
    x = 306,555,999.88/20,039.79
  6. Step 6: Final answer
    x = 15,297.37

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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.