Home / 21,191.45-29,244.11-11,760.01

Finding the Fourth Proportional to 21,191.45, 29,244.11 and 11,760.01

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Solution

The fourth proportional to 21,191.45, 29,244.11 and 11,760.01 is: 16,228.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191.45 : 29,244.11 = 11,760.01 : x
  2. Step 2: Convert to fraction form
    21,191.45/29,244.11 = 11,760.01/x
  3. Step 3: Cross multiply
    21,191.45x = 29,244.11 × 11,760.01
  4. Step 4: Simplify right side
    21,191.45x = 343,910,894.13
  5. Step 5: Solve for x
    x = 343,910,894.13/21,191.45
  6. Step 6: Final answer
    x = 16,228.76

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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.