Home / 20,098.13-27,734.07-11,145.31

Finding the Fourth Proportional to 20,098.13, 27,734.07 and 11,145.31

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Solution

The fourth proportional to 20,098.13, 27,734.07 and 11,145.31 is: 15,379.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,098.13 : 27,734.07 = 11,145.31 : x
  2. Step 2: Convert to fraction form
    20,098.13/27,734.07 = 11,145.31/x
  3. Step 3: Cross multiply
    20,098.13x = 27,734.07 × 11,145.31
  4. Step 4: Simplify right side
    20,098.13x = 309,104,807.71
  5. Step 5: Solve for x
    x = 309,104,807.71/20,098.13
  6. Step 6: Final answer
    x = 15,379.78

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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.