Home / 20,094.12-27,735.66-12,135

Finding the Fourth Proportional to 20,094.12, 27,735.66 and 12,135

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Solution

The fourth proportional to 20,094.12, 27,735.66 and 12,135 is: 16,749.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,094.12 : 27,735.66 = 12,135 : x
  2. Step 2: Convert to fraction form
    20,094.12/27,735.66 = 12,135/x
  3. Step 3: Cross multiply
    20,094.12x = 27,735.66 × 12,135
  4. Step 4: Simplify right side
    20,094.12x = 336,572,234.10
  5. Step 5: Solve for x
    x = 336,572,234.10/20,094.12
  6. Step 6: Final answer
    x = 16,749.79

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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.