Home / 18,581.53-27,871.21-13,588.96

Finding the Fourth Proportional to 18,581.53, 27,871.21 and 13,588.96

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Solution

The fourth proportional to 18,581.53, 27,871.21 and 13,588.96 is: 20,382.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.53 : 27,871.21 = 13,588.96 : x
  2. Step 2: Convert to fraction form
    18,581.53/27,871.21 = 13,588.96/x
  3. Step 3: Cross multiply
    18,581.53x = 27,871.21 × 13,588.96
  4. Step 4: Simplify right side
    18,581.53x = 378,740,757.84
  5. Step 5: Solve for x
    x = 378,740,757.84/18,581.53
  6. Step 6: Final answer
    x = 20,382.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.