Home / 21,229.77-31,844.97-8,082.87

Finding the Fourth Proportional to 21,229.77, 31,844.97 and 8,082.87

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Solution

The fourth proportional to 21,229.77, 31,844.97 and 8,082.87 is: 12,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.77 : 31,844.97 = 8,082.87 : x
  2. Step 2: Convert to fraction form
    21,229.77/31,844.97 = 8,082.87/x
  3. Step 3: Cross multiply
    21,229.77x = 31,844.97 × 8,082.87
  4. Step 4: Simplify right side
    21,229.77x = 257,398,633.25
  5. Step 5: Solve for x
    x = 257,398,633.25/21,229.77
  6. Step 6: Final answer
    x = 12,124.42

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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.