Home / 18,513.33-27,705.39-15,142.62

Finding the Fourth Proportional to 18,513.33, 27,705.39 and 15,142.62

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Solution

The fourth proportional to 18,513.33, 27,705.39 and 15,142.62 is: 22,661.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.33 : 27,705.39 = 15,142.62 : x
  2. Step 2: Convert to fraction form
    18,513.33/27,705.39 = 15,142.62/x
  3. Step 3: Cross multiply
    18,513.33x = 27,705.39 × 15,142.62
  4. Step 4: Simplify right side
    18,513.33x = 419,532,192.72
  5. Step 5: Solve for x
    x = 419,532,192.72/18,513.33
  6. Step 6: Final answer
    x = 22,661.09

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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.