Home / 19,672.68-27,145.93-11,171.73

Finding the Fourth Proportional to 19,672.68, 27,145.93 and 11,171.73

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Solution

The fourth proportional to 19,672.68, 27,145.93 and 11,171.73 is: 15,415.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.68 : 27,145.93 = 11,171.73 : x
  2. Step 2: Convert to fraction form
    19,672.68/27,145.93 = 11,171.73/x
  3. Step 3: Cross multiply
    19,672.68x = 27,145.93 × 11,171.73
  4. Step 4: Simplify right side
    19,672.68x = 303,267,000.56
  5. Step 5: Solve for x
    x = 303,267,000.56/19,672.68
  6. Step 6: Final answer
    x = 15,415.64

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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.