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Finding the Fourth Proportional to 26,293, 36,284.34 and 15,121.48

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Solution

The fourth proportional to 26,293, 36,284.34 and 15,121.48 is: 20,867.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,293 : 36,284.34 = 15,121.48 : x
  2. Step 2: Convert to fraction form
    26,293/36,284.34 = 15,121.48/x
  3. Step 3: Cross multiply
    26,293x = 36,284.34 × 15,121.48
  4. Step 4: Simplify right side
    26,293x = 548,672,921.62
  5. Step 5: Solve for x
    x = 548,672,921.62/26,293
  6. Step 6: Final answer
    x = 20,867.64

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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.