Home / 21,249.14-31,873.68-10,122.08

Finding the Fourth Proportional to 21,249.14, 31,873.68 and 10,122.08

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Solution

The fourth proportional to 21,249.14, 31,873.68 and 10,122.08 is: 15,183.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.14 : 31,873.68 = 10,122.08 : x
  2. Step 2: Convert to fraction form
    21,249.14/31,873.68 = 10,122.08/x
  3. Step 3: Cross multiply
    21,249.14x = 31,873.68 × 10,122.08
  4. Step 4: Simplify right side
    21,249.14x = 322,627,938.85
  5. Step 5: Solve for x
    x = 322,627,938.85/21,249.14
  6. Step 6: Final answer
    x = 15,183.11

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1.5x scale

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.