Home / 21,276.44-29,361.45-12,324.38

Finding the Fourth Proportional to 21,276.44, 29,361.45 and 12,324.38

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Solution

The fourth proportional to 21,276.44, 29,361.45 and 12,324.38 is: 17,007.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.44 : 29,361.45 = 12,324.38 : x
  2. Step 2: Convert to fraction form
    21,276.44/29,361.45 = 12,324.38/x
  3. Step 3: Cross multiply
    21,276.44x = 29,361.45 × 12,324.38
  4. Step 4: Simplify right side
    21,276.44x = 361,861,667.15
  5. Step 5: Solve for x
    x = 361,861,667.15/21,276.44
  6. Step 6: Final answer
    x = 17,007.62

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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.