Home / 21,096-29,109.96-11,663.28

Finding the Fourth Proportional to 21,096, 29,109.96 and 11,663.28

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Solution

The fourth proportional to 21,096, 29,109.96 and 11,663.28 is: 16,093.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096 : 29,109.96 = 11,663.28 : x
  2. Step 2: Convert to fraction form
    21,096/29,109.96 = 11,663.28/x
  3. Step 3: Cross multiply
    21,096x = 29,109.96 × 11,663.28
  4. Step 4: Simplify right side
    21,096x = 339,517,614.27
  5. Step 5: Solve for x
    x = 339,517,614.27/21,096
  6. Step 6: Final answer
    x = 16,093.93

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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.