Home / 18,553.16-27,843.42-13,636.05

Finding the Fourth Proportional to 18,553.16, 27,843.42 and 13,636.05

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Solution

The fourth proportional to 18,553.16, 27,843.42 and 13,636.05 is: 20,464.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.16 : 27,843.42 = 13,636.05 : x
  2. Step 2: Convert to fraction form
    18,553.16/27,843.42 = 13,636.05/x
  3. Step 3: Cross multiply
    18,553.16x = 27,843.42 × 13,636.05
  4. Step 4: Simplify right side
    18,553.16x = 379,674,199.11
  5. Step 5: Solve for x
    x = 379,674,199.11/18,553.16
  6. Step 6: Final answer
    x = 20,464.13

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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.