Home / 21,276.03-29,361.72-11,716.33

Finding the Fourth Proportional to 21,276.03, 29,361.72 and 11,716.33

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Solution

The fourth proportional to 21,276.03, 29,361.72 and 11,716.33 is: 16,168.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.03 : 29,361.72 = 11,716.33 : x
  2. Step 2: Convert to fraction form
    21,276.03/29,361.72 = 11,716.33/x
  3. Step 3: Cross multiply
    21,276.03x = 29,361.72 × 11,716.33
  4. Step 4: Simplify right side
    21,276.03x = 344,011,626.47
  5. Step 5: Solve for x
    x = 344,011,626.47/21,276.03
  6. Step 6: Final answer
    x = 16,168.97

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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.