Home / 21,625.57-29,843.31-12,671.29

Finding the Fourth Proportional to 21,625.57, 29,843.31 and 12,671.29

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Solution

The fourth proportional to 21,625.57, 29,843.31 and 12,671.29 is: 17,486.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.57 : 29,843.31 = 12,671.29 : x
  2. Step 2: Convert to fraction form
    21,625.57/29,843.31 = 12,671.29/x
  3. Step 3: Cross multiply
    21,625.57x = 29,843.31 × 12,671.29
  4. Step 4: Simplify right side
    21,625.57x = 378,153,235.57
  5. Step 5: Solve for x
    x = 378,153,235.57/21,625.57
  6. Step 6: Final answer
    x = 17,486.39

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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.