Home / 20,201.31-27,878.31-11,248.56

Finding the Fourth Proportional to 20,201.31, 27,878.31 and 11,248.56

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Solution

The fourth proportional to 20,201.31, 27,878.31 and 11,248.56 is: 15,523.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.31 : 27,878.31 = 11,248.56 : x
  2. Step 2: Convert to fraction form
    20,201.31/27,878.31 = 11,248.56/x
  3. Step 3: Cross multiply
    20,201.31x = 27,878.31 × 11,248.56
  4. Step 4: Simplify right side
    20,201.31x = 313,590,842.73
  5. Step 5: Solve for x
    x = 313,590,842.73/20,201.31
  6. Step 6: Final answer
    x = 15,523.29

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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.