Home / 21,277.44-29,361.96-11,845.80

Finding the Fourth Proportional to 21,277.44, 29,361.96 and 11,845.80

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Solution

The fourth proportional to 21,277.44, 29,361.96 and 11,845.80 is: 16,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.44 : 29,361.96 = 11,845.80 : x
  2. Step 2: Convert to fraction form
    21,277.44/29,361.96 = 11,845.80/x
  3. Step 3: Cross multiply
    21,277.44x = 29,361.96 × 11,845.80
  4. Step 4: Simplify right side
    21,277.44x = 347,815,905.77
  5. Step 5: Solve for x
    x = 347,815,905.77/21,277.44
  6. Step 6: Final answer
    x = 16,346.70

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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.