Home / 21,274.68-29,361.78-12,322.56

Finding the Fourth Proportional to 21,274.68, 29,361.78 and 12,322.56

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Solution

The fourth proportional to 21,274.68, 29,361.78 and 12,322.56 is: 17,006.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.68 : 29,361.78 = 12,322.56 : x
  2. Step 2: Convert to fraction form
    21,274.68/29,361.78 = 12,322.56/x
  3. Step 3: Cross multiply
    21,274.68x = 29,361.78 × 12,322.56
  4. Step 4: Simplify right side
    21,274.68x = 361,812,295.76
  5. Step 5: Solve for x
    x = 361,812,295.76/21,274.68
  6. Step 6: Final answer
    x = 17,006.71

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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.