Home / 19,861.11-27,397.98-12,305.03

Finding the Fourth Proportional to 19,861.11, 27,397.98 and 12,305.03

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Solution

The fourth proportional to 19,861.11, 27,397.98 and 12,305.03 is: 16,974.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.11 : 27,397.98 = 12,305.03 : x
  2. Step 2: Convert to fraction form
    19,861.11/27,397.98 = 12,305.03/x
  3. Step 3: Cross multiply
    19,861.11x = 27,397.98 × 12,305.03
  4. Step 4: Simplify right side
    19,861.11x = 337,132,828.85
  5. Step 5: Solve for x
    x = 337,132,828.85/19,861.11
  6. Step 6: Final answer
    x = 16,974.52

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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.