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Finding the Fourth Proportional to 21,604.94, 29,814.83 and 11,668.94

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Solution

The fourth proportional to 21,604.94, 29,814.83 and 11,668.94 is: 16,103.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,604.94 : 29,814.83 = 11,668.94 : x
  2. Step 2: Convert to fraction form
    21,604.94/29,814.83 = 11,668.94/x
  3. Step 3: Cross multiply
    21,604.94x = 29,814.83 × 11,668.94
  4. Step 4: Simplify right side
    21,604.94x = 347,907,462.38
  5. Step 5: Solve for x
    x = 347,907,462.38/21,604.94
  6. Step 6: Final answer
    x = 16,103.14

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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.