Home / 20,174.31-27,838.60-11,674.75

Finding the Fourth Proportional to 20,174.31, 27,838.60 and 11,674.75

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Solution

The fourth proportional to 20,174.31, 27,838.60 and 11,674.75 is: 16,110.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174.31 : 27,838.60 = 11,674.75 : x
  2. Step 2: Convert to fraction form
    20,174.31/27,838.60 = 11,674.75/x
  3. Step 3: Cross multiply
    20,174.31x = 27,838.60 × 11,674.75
  4. Step 4: Simplify right side
    20,174.31x = 325,008,497.78
  5. Step 5: Solve for x
    x = 325,008,497.78/20,174.31
  6. Step 6: Final answer
    x = 16,110.02

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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.