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Finding the Fourth Proportional to 21,668.14, 29,902.02 and 11,732.14

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Solution

The fourth proportional to 21,668.14, 29,902.02 and 11,732.14 is: 16,190.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.14 : 29,902.02 = 11,732.14 : x
  2. Step 2: Convert to fraction form
    21,668.14/29,902.02 = 11,732.14/x
  3. Step 3: Cross multiply
    21,668.14x = 29,902.02 × 11,732.14
  4. Step 4: Simplify right side
    21,668.14x = 350,814,684.92
  5. Step 5: Solve for x
    x = 350,814,684.92/21,668.14
  6. Step 6: Final answer
    x = 16,190.35

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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.