Home / 21,195.45-29,247.71-12,241.73

Finding the Fourth Proportional to 21,195.45, 29,247.71 and 12,241.73

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Solution

The fourth proportional to 21,195.45, 29,247.71 and 12,241.73 is: 16,892.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.45 : 29,247.71 = 12,241.73 : x
  2. Step 2: Convert to fraction form
    21,195.45/29,247.71 = 12,241.73/x
  3. Step 3: Cross multiply
    21,195.45x = 29,247.71 × 12,241.73
  4. Step 4: Simplify right side
    21,195.45x = 358,042,615.28
  5. Step 5: Solve for x
    x = 358,042,615.28/21,195.45
  6. Step 6: Final answer
    x = 16,892.43

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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.