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Finding the Fourth Proportional to 21,494.75, 32,249.64 and 8,356.34

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Solution

The fourth proportional to 21,494.75, 32,249.64 and 8,356.34 is: 12,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,494.75 : 32,249.64 = 8,356.34 : x
  2. Step 2: Convert to fraction form
    21,494.75/32,249.64 = 8,356.34/x
  3. Step 3: Cross multiply
    21,494.75x = 32,249.64 × 8,356.34
  4. Step 4: Simplify right side
    21,494.75x = 269,488,795.47
  5. Step 5: Solve for x
    x = 269,488,795.47/21,494.75
  6. Step 6: Final answer
    x = 12,537.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.