Home / 20,163.27-27,821.01-13,705.14

Finding the Fourth Proportional to 20,163.27, 27,821.01 and 13,705.14

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Solution

The fourth proportional to 20,163.27, 27,821.01 and 13,705.14 is: 18,910.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.27 : 27,821.01 = 13,705.14 : x
  2. Step 2: Convert to fraction form
    20,163.27/27,821.01 = 13,705.14/x
  3. Step 3: Cross multiply
    20,163.27x = 27,821.01 × 13,705.14
  4. Step 4: Simplify right side
    20,163.27x = 381,290,836.99
  5. Step 5: Solve for x
    x = 381,290,836.99/20,163.27
  6. Step 6: Final answer
    x = 18,910.17

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1.5x scale

Why These Related Problems?

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