Home / 20,241.36-27,936.70-13,080.15

Finding the Fourth Proportional to 20,241.36, 27,936.70 and 13,080.15

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Solution

The fourth proportional to 20,241.36, 27,936.70 and 13,080.15 is: 18,052.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.36 : 27,936.70 = 13,080.15 : x
  2. Step 2: Convert to fraction form
    20,241.36/27,936.70 = 13,080.15/x
  3. Step 3: Cross multiply
    20,241.36x = 27,936.70 × 13,080.15
  4. Step 4: Simplify right side
    20,241.36x = 365,416,193.80
  5. Step 5: Solve for x
    x = 365,416,193.80/20,241.36
  6. Step 6: Final answer
    x = 18,052.95

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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.