Home / 21,175.62-29,222.55-11,743.98

Finding the Fourth Proportional to 21,175.62, 29,222.55 and 11,743.98

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Solution

The fourth proportional to 21,175.62, 29,222.55 and 11,743.98 is: 16,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175.62 : 29,222.55 = 11,743.98 : x
  2. Step 2: Convert to fraction form
    21,175.62/29,222.55 = 11,743.98/x
  3. Step 3: Cross multiply
    21,175.62x = 29,222.55 × 11,743.98
  4. Step 4: Simplify right side
    21,175.62x = 343,189,042.75
  5. Step 5: Solve for x
    x = 343,189,042.75/21,175.62
  6. Step 6: Final answer
    x = 16,206.80

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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.