Home / 21,317.49-29,382.89-14,241.33

Finding the Fourth Proportional to 21,317.49, 29,382.89 and 14,241.33

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Solution

The fourth proportional to 21,317.49, 29,382.89 and 14,241.33 is: 19,629.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317.49 : 29,382.89 = 14,241.33 : x
  2. Step 2: Convert to fraction form
    21,317.49/29,382.89 = 14,241.33/x
  3. Step 3: Cross multiply
    21,317.49x = 29,382.89 × 14,241.33
  4. Step 4: Simplify right side
    21,317.49x = 418,451,361.64
  5. Step 5: Solve for x
    x = 418,451,361.64/21,317.49
  6. Step 6: Final answer
    x = 19,629.49

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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.