Home / 21,269.16-31,855.22-10,183.70

Finding the Fourth Proportional to 21,269.16, 31,855.22 and 10,183.70

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Solution

The fourth proportional to 21,269.16, 31,855.22 and 10,183.70 is: 15,252.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.16 : 31,855.22 = 10,183.70 : x
  2. Step 2: Convert to fraction form
    21,269.16/31,855.22 = 10,183.70/x
  3. Step 3: Cross multiply
    21,269.16x = 31,855.22 × 10,183.70
  4. Step 4: Simplify right side
    21,269.16x = 324,403,793.72
  5. Step 5: Solve for x
    x = 324,403,793.72/21,269.16
  6. Step 6: Final answer
    x = 15,252.31

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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.