Home / 20,087.08-27,712.26-12,529

Finding the Fourth Proportional to 20,087.08, 27,712.26 and 12,529

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Solution

The fourth proportional to 20,087.08, 27,712.26 and 12,529 is: 17,285.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.08 : 27,712.26 = 12,529 : x
  2. Step 2: Convert to fraction form
    20,087.08/27,712.26 = 12,529/x
  3. Step 3: Cross multiply
    20,087.08x = 27,712.26 × 12,529
  4. Step 4: Simplify right side
    20,087.08x = 347,206,905.54
  5. Step 5: Solve for x
    x = 347,206,905.54/20,087.08
  6. Step 6: Final answer
    x = 17,285.09

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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.