Home / 21,341.22-29,450.97-12,393.96

Finding the Fourth Proportional to 21,341.22, 29,450.97 and 12,393.96

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Solution

The fourth proportional to 21,341.22, 29,450.97 and 12,393.96 is: 17,103.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.22 : 29,450.97 = 12,393.96 : x
  2. Step 2: Convert to fraction form
    21,341.22/29,450.97 = 12,393.96/x
  3. Step 3: Cross multiply
    21,341.22x = 29,450.97 × 12,393.96
  4. Step 4: Simplify right side
    21,341.22x = 365,014,144.14
  5. Step 5: Solve for x
    x = 365,014,144.14/21,341.22
  6. Step 6: Final answer
    x = 17,103.71

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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.