Home / 21,191.44-29,244.36-11,760.88

Finding the Fourth Proportional to 21,191.44, 29,244.36 and 11,760.88

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Solution

The fourth proportional to 21,191.44, 29,244.36 and 11,760.88 is: 16,230.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191.44 : 29,244.36 = 11,760.88 : x
  2. Step 2: Convert to fraction form
    21,191.44/29,244.36 = 11,760.88/x
  3. Step 3: Cross multiply
    21,191.44x = 29,244.36 × 11,760.88
  4. Step 4: Simplify right side
    21,191.44x = 343,939,408.64
  5. Step 5: Solve for x
    x = 343,939,408.64/21,191.44
  6. Step 6: Final answer
    x = 16,230.11

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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.