Home / 21,192.27-29,245.30-11,760.81

Finding the Fourth Proportional to 21,192.27, 29,245.30 and 11,760.81

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Solution

The fourth proportional to 21,192.27, 29,245.30 and 11,760.81 is: 16,229.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.27 : 29,245.30 = 11,760.81 : x
  2. Step 2: Convert to fraction form
    21,192.27/29,245.30 = 11,760.81/x
  3. Step 3: Cross multiply
    21,192.27x = 29,245.30 × 11,760.81
  4. Step 4: Simplify right side
    21,192.27x = 343,948,416.69
  5. Step 5: Solve for x
    x = 343,948,416.69/21,192.27
  6. Step 6: Final answer
    x = 16,229.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.