Home / 20,160.66-27,817.65-11,775.54

Finding the Fourth Proportional to 20,160.66, 27,817.65 and 11,775.54

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Solution

The fourth proportional to 20,160.66, 27,817.65 and 11,775.54 is: 16,247.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.66 : 27,817.65 = 11,775.54 : x
  2. Step 2: Convert to fraction form
    20,160.66/27,817.65 = 11,775.54/x
  3. Step 3: Cross multiply
    20,160.66x = 27,817.65 × 11,775.54
  4. Step 4: Simplify right side
    20,160.66x = 327,567,850.28
  5. Step 5: Solve for x
    x = 327,567,850.28/20,160.66
  6. Step 6: Final answer
    x = 16,247.87

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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.