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Finding the Fourth Proportional to 21,604.10, 29,811.26 and 12,043.27

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Solution

The fourth proportional to 21,604.10, 29,811.26 and 12,043.27 is: 16,618.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,604.10 : 29,811.26 = 12,043.27 : x
  2. Step 2: Convert to fraction form
    21,604.10/29,811.26 = 12,043.27/x
  3. Step 3: Cross multiply
    21,604.10x = 29,811.26 × 12,043.27
  4. Step 4: Simplify right side
    21,604.10x = 359,025,036.33
  5. Step 5: Solve for x
    x = 359,025,036.33/21,604.10
  6. Step 6: Final answer
    x = 16,618.37

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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.