Home / 20,172.97-27,836.44-12,104.99

Finding the Fourth Proportional to 20,172.97, 27,836.44 and 12,104.99

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Solution

The fourth proportional to 20,172.97, 27,836.44 and 12,104.99 is: 16,703.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.97 : 27,836.44 = 12,104.99 : x
  2. Step 2: Convert to fraction form
    20,172.97/27,836.44 = 12,104.99/x
  3. Step 3: Cross multiply
    20,172.97x = 27,836.44 × 12,104.99
  4. Step 4: Simplify right side
    20,172.97x = 336,959,827.84
  5. Step 5: Solve for x
    x = 336,959,827.84/20,172.97
  6. Step 6: Final answer
    x = 16,703.53

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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.