Home / 20,110.84-27,748.12-12,845.96

Finding the Fourth Proportional to 20,110.84, 27,748.12 and 12,845.96

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Solution

The fourth proportional to 20,110.84, 27,748.12 and 12,845.96 is: 17,724.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.84 : 27,748.12 = 12,845.96 : x
  2. Step 2: Convert to fraction form
    20,110.84/27,748.12 = 12,845.96/x
  3. Step 3: Cross multiply
    20,110.84x = 27,748.12 × 12,845.96
  4. Step 4: Simplify right side
    20,110.84x = 356,451,239.60
  5. Step 5: Solve for x
    x = 356,451,239.60/20,110.84
  6. Step 6: Final answer
    x = 17,724.33

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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.