Home / 21,277.26-31,902.18-10,183.68

Finding the Fourth Proportional to 21,277.26, 31,902.18 and 10,183.68

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Solution

The fourth proportional to 21,277.26, 31,902.18 and 10,183.68 is: 15,268.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.26 : 31,902.18 = 10,183.68 : x
  2. Step 2: Convert to fraction form
    21,277.26/31,902.18 = 10,183.68/x
  3. Step 3: Cross multiply
    21,277.26x = 31,902.18 × 10,183.68
  4. Step 4: Simplify right side
    21,277.26x = 324,881,592.42
  5. Step 5: Solve for x
    x = 324,881,592.42/21,277.26
  6. Step 6: Final answer
    x = 15,268.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.