Home / 20,156.69-27,814.51-11,201.33

Finding the Fourth Proportional to 20,156.69, 27,814.51 and 11,201.33

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Solution

The fourth proportional to 20,156.69, 27,814.51 and 11,201.33 is: 15,456.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.69 : 27,814.51 = 11,201.33 : x
  2. Step 2: Convert to fraction form
    20,156.69/27,814.51 = 11,201.33/x
  3. Step 3: Cross multiply
    20,156.69x = 27,814.51 × 11,201.33
  4. Step 4: Simplify right side
    20,156.69x = 311,559,505.30
  5. Step 5: Solve for x
    x = 311,559,505.30/20,156.69
  6. Step 6: Final answer
    x = 15,456.88

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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.