Home / 20,173.91-27,841.38-11,222.25

Finding the Fourth Proportional to 20,173.91, 27,841.38 and 11,222.25

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Solution

The fourth proportional to 20,173.91, 27,841.38 and 11,222.25 is: 15,487.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.91 : 27,841.38 = 11,222.25 : x
  2. Step 2: Convert to fraction form
    20,173.91/27,841.38 = 11,222.25/x
  3. Step 3: Cross multiply
    20,173.91x = 27,841.38 × 11,222.25
  4. Step 4: Simplify right side
    20,173.91x = 312,442,926.71
  5. Step 5: Solve for x
    x = 312,442,926.71/20,173.91
  6. Step 6: Final answer
    x = 15,487.47

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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.