Home / 21,275.75-29,361.24-11,716.37

Finding the Fourth Proportional to 21,275.75, 29,361.24 and 11,716.37

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Solution

The fourth proportional to 21,275.75, 29,361.24 and 11,716.37 is: 16,168.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.75 : 29,361.24 = 11,716.37 : x
  2. Step 2: Convert to fraction form
    21,275.75/29,361.24 = 11,716.37/x
  3. Step 3: Cross multiply
    21,275.75x = 29,361.24 × 11,716.37
  4. Step 4: Simplify right side
    21,275.75x = 344,007,004.69
  5. Step 5: Solve for x
    x = 344,007,004.69/21,275.75
  6. Step 6: Final answer
    x = 16,168.98

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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.