Home / 20,177.64-27,845.01-11,102.94

Finding the Fourth Proportional to 20,177.64, 27,845.01 and 11,102.94

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Solution

The fourth proportional to 20,177.64, 27,845.01 and 11,102.94 is: 15,321.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.64 : 27,845.01 = 11,102.94 : x
  2. Step 2: Convert to fraction form
    20,177.64/27,845.01 = 11,102.94/x
  3. Step 3: Cross multiply
    20,177.64x = 27,845.01 × 11,102.94
  4. Step 4: Simplify right side
    20,177.64x = 309,161,475.33
  5. Step 5: Solve for x
    x = 309,161,475.33/20,177.64
  6. Step 6: Final answer
    x = 15,321.98

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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.