Home / 21,092.64-31,696.44-11,238.96

Finding the Fourth Proportional to 21,092.64, 31,696.44 and 11,238.96

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Solution

The fourth proportional to 21,092.64, 31,696.44 and 11,238.96 is: 16,889.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.64 : 31,696.44 = 11,238.96 : x
  2. Step 2: Convert to fraction form
    21,092.64/31,696.44 = 11,238.96/x
  3. Step 3: Cross multiply
    21,092.64x = 31,696.44 × 11,238.96
  4. Step 4: Simplify right side
    21,092.64x = 356,235,021.30
  5. Step 5: Solve for x
    x = 356,235,021.30/21,092.64
  6. Step 6: Final answer
    x = 16,889.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.