Home / 16,293-24,451.78-11,921.72

Finding the Fourth Proportional to 16,293, 24,451.78 and 11,921.72

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Solution

The fourth proportional to 16,293, 24,451.78 and 11,921.72 is: 17,891.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,293 : 24,451.78 = 11,921.72 : x
  2. Step 2: Convert to fraction form
    16,293/24,451.78 = 11,921.72/x
  3. Step 3: Cross multiply
    16,293x = 24,451.78 × 11,921.72
  4. Step 4: Simplify right side
    16,293x = 291,507,274.66
  5. Step 5: Solve for x
    x = 291,507,274.66/16,293
  6. Step 6: Final answer
    x = 17,891.57

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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.