Home / 21,494.78-29,664.57-11,935.26

Finding the Fourth Proportional to 21,494.78, 29,664.57 and 11,935.26

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Solution

The fourth proportional to 21,494.78, 29,664.57 and 11,935.26 is: 16,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,494.78 : 29,664.57 = 11,935.26 : x
  2. Step 2: Convert to fraction form
    21,494.78/29,664.57 = 11,935.26/x
  3. Step 3: Cross multiply
    21,494.78x = 29,664.57 × 11,935.26
  4. Step 4: Simplify right side
    21,494.78x = 354,054,429.90
  5. Step 5: Solve for x
    x = 354,054,429.90/21,494.78
  6. Step 6: Final answer
    x = 16,471.65

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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.