Home / 18,039.82-27,057.26-5,389.40

Finding the Fourth Proportional to 18,039.82, 27,057.26 and 5,389.40

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Solution

The fourth proportional to 18,039.82, 27,057.26 and 5,389.40 is: 8,083.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,039.82 : 27,057.26 = 5,389.40 : x
  2. Step 2: Convert to fraction form
    18,039.82/27,057.26 = 5,389.40/x
  3. Step 3: Cross multiply
    18,039.82x = 27,057.26 × 5,389.40
  4. Step 4: Simplify right side
    18,039.82x = 145,822,397.04
  5. Step 5: Solve for x
    x = 145,822,397.04/18,039.82
  6. Step 6: Final answer
    x = 8,083.36

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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.