Home / 21,406.04-29,540.42-11,974.62

Finding the Fourth Proportional to 21,406.04, 29,540.42 and 11,974.62

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Solution

The fourth proportional to 21,406.04, 29,540.42 and 11,974.62 is: 16,525.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406.04 : 29,540.42 = 11,974.62 : x
  2. Step 2: Convert to fraction form
    21,406.04/29,540.42 = 11,974.62/x
  3. Step 3: Cross multiply
    21,406.04x = 29,540.42 × 11,974.62
  4. Step 4: Simplify right side
    21,406.04x = 353,735,304.14
  5. Step 5: Solve for x
    x = 353,735,304.14/21,406.04
  6. Step 6: Final answer
    x = 16,525.02

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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.