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Finding the Fourth Proportional to 21,671.08, 29,906.02 and 11,735.08

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Solution

The fourth proportional to 21,671.08, 29,906.02 and 11,735.08 is: 16,194.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,671.08 : 29,906.02 = 11,735.08 : x
  2. Step 2: Convert to fraction form
    21,671.08/29,906.02 = 11,735.08/x
  3. Step 3: Cross multiply
    21,671.08x = 29,906.02 × 11,735.08
  4. Step 4: Simplify right side
    21,671.08x = 350,949,537.18
  5. Step 5: Solve for x
    x = 350,949,537.18/21,671.08
  6. Step 6: Final answer
    x = 16,194.37

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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.