Home / 21,671.46-29,906.19-12,111.44

Finding the Fourth Proportional to 21,671.46, 29,906.19 and 12,111.44

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Solution

The fourth proportional to 21,671.46, 29,906.19 and 12,111.44 is: 16,713.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,671.46 : 29,906.19 = 12,111.44 : x
  2. Step 2: Convert to fraction form
    21,671.46/29,906.19 = 12,111.44/x
  3. Step 3: Cross multiply
    21,671.46x = 29,906.19 × 12,111.44
  4. Step 4: Simplify right side
    21,671.46x = 362,206,876.28
  5. Step 5: Solve for x
    x = 362,206,876.28/21,671.46
  6. Step 6: Final answer
    x = 16,713.54

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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.