Home / 20,086.94-27,720.18-11,134.59

Finding the Fourth Proportional to 20,086.94, 27,720.18 and 11,134.59

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Solution

The fourth proportional to 20,086.94, 27,720.18 and 11,134.59 is: 15,365.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.94 : 27,720.18 = 11,134.59 : x
  2. Step 2: Convert to fraction form
    20,086.94/27,720.18 = 11,134.59/x
  3. Step 3: Cross multiply
    20,086.94x = 27,720.18 × 11,134.59
  4. Step 4: Simplify right side
    20,086.94x = 308,652,783.35
  5. Step 5: Solve for x
    x = 308,652,783.35/20,086.94
  6. Step 6: Final answer
    x = 15,365.85

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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.