Home / 21,165.30-29,206.17-11,732.04

Finding the Fourth Proportional to 21,165.30, 29,206.17 and 11,732.04

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Solution

The fourth proportional to 21,165.30, 29,206.17 and 11,732.04 is: 16,189.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,165.30 : 29,206.17 = 11,732.04 : x
  2. Step 2: Convert to fraction form
    21,165.30/29,206.17 = 11,732.04/x
  3. Step 3: Cross multiply
    21,165.30x = 29,206.17 × 11,732.04
  4. Step 4: Simplify right side
    21,165.30x = 342,647,954.69
  5. Step 5: Solve for x
    x = 342,647,954.69/21,165.30
  6. Step 6: Final answer
    x = 16,189.14

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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.