Home / 20,829.29-28,744.31-11,269.14

Finding the Fourth Proportional to 20,829.29, 28,744.31 and 11,269.14

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Solution

The fourth proportional to 20,829.29, 28,744.31 and 11,269.14 is: 15,551.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829.29 : 28,744.31 = 11,269.14 : x
  2. Step 2: Convert to fraction form
    20,829.29/28,744.31 = 11,269.14/x
  3. Step 3: Cross multiply
    20,829.29x = 28,744.31 × 11,269.14
  4. Step 4: Simplify right side
    20,829.29x = 323,923,597.25
  5. Step 5: Solve for x
    x = 323,923,597.25/20,829.29
  6. Step 6: Final answer
    x = 15,551.35

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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.