Home / 21,201.48-29,257.14-11,770.64

Finding the Fourth Proportional to 21,201.48, 29,257.14 and 11,770.64

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Solution

The fourth proportional to 21,201.48, 29,257.14 and 11,770.64 is: 16,242.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201.48 : 29,257.14 = 11,770.64 : x
  2. Step 2: Convert to fraction form
    21,201.48/29,257.14 = 11,770.64/x
  3. Step 3: Cross multiply
    21,201.48x = 29,257.14 × 11,770.64
  4. Step 4: Simplify right side
    21,201.48x = 344,375,262.37
  5. Step 5: Solve for x
    x = 344,375,262.37/21,201.48
  6. Step 6: Final answer
    x = 16,242.98

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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.