Home / 20,173.05-27,836.66-11,219.11

Finding the Fourth Proportional to 20,173.05, 27,836.66 and 11,219.11

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Solution

The fourth proportional to 20,173.05, 27,836.66 and 11,219.11 is: 15,481.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.05 : 27,836.66 = 11,219.11 : x
  2. Step 2: Convert to fraction form
    20,173.05/27,836.66 = 11,219.11/x
  3. Step 3: Cross multiply
    20,173.05x = 27,836.66 × 11,219.11
  4. Step 4: Simplify right side
    20,173.05x = 312,302,509.03
  5. Step 5: Solve for x
    x = 312,302,509.03/20,173.05
  6. Step 6: Final answer
    x = 15,481.17

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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.