Home / 21,192.12-29,244.14-11,760.60

Finding the Fourth Proportional to 21,192.12, 29,244.14 and 11,760.60

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Solution

The fourth proportional to 21,192.12, 29,244.14 and 11,760.60 is: 16,229.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.12 : 29,244.14 = 11,760.60 : x
  2. Step 2: Convert to fraction form
    21,192.12/29,244.14 = 11,760.60/x
  3. Step 3: Cross multiply
    21,192.12x = 29,244.14 × 11,760.60
  4. Step 4: Simplify right side
    21,192.12x = 343,928,632.88
  5. Step 5: Solve for x
    x = 343,928,632.88/21,192.12
  6. Step 6: Final answer
    x = 16,229.08

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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.