Home / 20,072.12-27,722.79-13,346.10

Finding the Fourth Proportional to 20,072.12, 27,722.79 and 13,346.10

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Solution

The fourth proportional to 20,072.12, 27,722.79 and 13,346.10 is: 18,433.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.12 : 27,722.79 = 13,346.10 : x
  2. Step 2: Convert to fraction form
    20,072.12/27,722.79 = 13,346.10/x
  3. Step 3: Cross multiply
    20,072.12x = 27,722.79 × 13,346.10
  4. Step 4: Simplify right side
    20,072.12x = 369,991,127.62
  5. Step 5: Solve for x
    x = 369,991,127.62/20,072.12
  6. Step 6: Final answer
    x = 18,433.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.