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Finding the Fourth Proportional to 20,536.88, 30,805.32 and 8,062.78

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Solution

The fourth proportional to 20,536.88, 30,805.32 and 8,062.78 is: 12,094.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536.88 : 30,805.32 = 8,062.78 : x
  2. Step 2: Convert to fraction form
    20,536.88/30,805.32 = 8,062.78/x
  3. Step 3: Cross multiply
    20,536.88x = 30,805.32 × 8,062.78
  4. Step 4: Simplify right side
    20,536.88x = 248,376,517.99
  5. Step 5: Solve for x
    x = 248,376,517.99/20,536.88
  6. Step 6: Final answer
    x = 12,094.17

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1.5x scale

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.