Home / 20,084.88-27,716.40-12,126.36

Finding the Fourth Proportional to 20,084.88, 27,716.40 and 12,126.36

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Solution

The fourth proportional to 20,084.88, 27,716.40 and 12,126.36 is: 16,733.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.88 : 27,716.40 = 12,126.36 : x
  2. Step 2: Convert to fraction form
    20,084.88/27,716.40 = 12,126.36/x
  3. Step 3: Cross multiply
    20,084.88x = 27,716.40 × 12,126.36
  4. Step 4: Simplify right side
    20,084.88x = 336,099,044.30
  5. Step 5: Solve for x
    x = 336,099,044.30/20,084.88
  6. Step 6: Final answer
    x = 16,733.93

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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.