Home / 21,293.22-31,918.23-10,183.62

Finding the Fourth Proportional to 21,293.22, 31,918.23 and 10,183.62

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Solution

The fourth proportional to 21,293.22, 31,918.23 and 10,183.62 is: 15,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.22 : 31,918.23 = 10,183.62 : x
  2. Step 2: Convert to fraction form
    21,293.22/31,918.23 = 10,183.62/x
  3. Step 3: Cross multiply
    21,293.22x = 31,918.23 × 10,183.62
  4. Step 4: Simplify right side
    21,293.22x = 325,043,125.39
  5. Step 5: Solve for x
    x = 325,043,125.39/21,293.22
  6. Step 6: Final answer
    x = 15,265.10

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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.