Home / 20,086.53-27,717.44-11,133.80

Finding the Fourth Proportional to 20,086.53, 27,717.44 and 11,133.80

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Solution

The fourth proportional to 20,086.53, 27,717.44 and 11,133.80 is: 15,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.53 : 27,717.44 = 11,133.80 : x
  2. Step 2: Convert to fraction form
    20,086.53/27,717.44 = 11,133.80/x
  3. Step 3: Cross multiply
    20,086.53x = 27,717.44 × 11,133.80
  4. Step 4: Simplify right side
    20,086.53x = 308,600,561.69
  5. Step 5: Solve for x
    x = 308,600,561.69/20,086.53
  6. Step 6: Final answer
    x = 15,363.56

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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.