Home / 21,694.22-29,938.24-12,744.60

Finding the Fourth Proportional to 21,694.22, 29,938.24 and 12,744.60

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Solution

The fourth proportional to 21,694.22, 29,938.24 and 12,744.60 is: 17,587.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,694.22 : 29,938.24 = 12,744.60 : x
  2. Step 2: Convert to fraction form
    21,694.22/29,938.24 = 12,744.60/x
  3. Step 3: Cross multiply
    21,694.22x = 29,938.24 × 12,744.60
  4. Step 4: Simplify right side
    21,694.22x = 381,550,893.50
  5. Step 5: Solve for x
    x = 381,550,893.50/21,694.22
  6. Step 6: Final answer
    x = 17,587.68

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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.