Home / 21,185.88-29,241.68-12,232.05

Finding the Fourth Proportional to 21,185.88, 29,241.68 and 12,232.05

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Solution

The fourth proportional to 21,185.88, 29,241.68 and 12,232.05 is: 16,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185.88 : 29,241.68 = 12,232.05 : x
  2. Step 2: Convert to fraction form
    21,185.88/29,241.68 = 12,232.05/x
  3. Step 3: Cross multiply
    21,185.88x = 29,241.68 × 12,232.05
  4. Step 4: Simplify right side
    21,185.88x = 357,685,691.84
  5. Step 5: Solve for x
    x = 357,685,691.84/21,185.88
  6. Step 6: Final answer
    x = 16,883.21

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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.