Home / 21,276.62-29,361.49-11,716.31

Finding the Fourth Proportional to 21,276.62, 29,361.49 and 11,716.31

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Solution

The fourth proportional to 21,276.62, 29,361.49 and 11,716.31 is: 16,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.62 : 29,361.49 = 11,716.31 : x
  2. Step 2: Convert to fraction form
    21,276.62/29,361.49 = 11,716.31/x
  3. Step 3: Cross multiply
    21,276.62x = 29,361.49 × 11,716.31
  4. Step 4: Simplify right side
    21,276.62x = 344,008,318.90
  5. Step 5: Solve for x
    x = 344,008,318.90/21,276.62
  6. Step 6: Final answer
    x = 16,168.37

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1.5x scale

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.