Home / 21,294.66-31,961.68-10,772.12

Finding the Fourth Proportional to 21,294.66, 31,961.68 and 10,772.12

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Solution

The fourth proportional to 21,294.66, 31,961.68 and 10,772.12 is: 16,168.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294.66 : 31,961.68 = 10,772.12 : x
  2. Step 2: Convert to fraction form
    21,294.66/31,961.68 = 10,772.12/x
  3. Step 3: Cross multiply
    21,294.66x = 31,961.68 × 10,772.12
  4. Step 4: Simplify right side
    21,294.66x = 344,295,052.36
  5. Step 5: Solve for x
    x = 344,295,052.36/21,294.66
  6. Step 6: Final answer
    x = 16,168.14

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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.