Home / 19,989.89-27,585.92-11,037.31

Finding the Fourth Proportional to 19,989.89, 27,585.92 and 11,037.31

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Solution

The fourth proportional to 19,989.89, 27,585.92 and 11,037.31 is: 15,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989.89 : 27,585.92 = 11,037.31 : x
  2. Step 2: Convert to fraction form
    19,989.89/27,585.92 = 11,037.31/x
  3. Step 3: Cross multiply
    19,989.89x = 27,585.92 × 11,037.31
  4. Step 4: Simplify right side
    19,989.89x = 304,474,350.68
  5. Step 5: Solve for x
    x = 304,474,350.68/19,989.89
  6. Step 6: Final answer
    x = 15,231.42

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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.