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Finding the Fourth Proportional to 36,689.69, 55,059.17 and 12,997.14

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Solution

The fourth proportional to 36,689.69, 55,059.17 and 12,997.14 is: 19,504.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,689.69 : 55,059.17 = 12,997.14 : x
  2. Step 2: Convert to fraction form
    36,689.69/55,059.17 = 12,997.14/x
  3. Step 3: Cross multiply
    36,689.69x = 55,059.17 × 12,997.14
  4. Step 4: Simplify right side
    36,689.69x = 715,611,675.79
  5. Step 5: Solve for x
    x = 715,611,675.79/36,689.69
  6. Step 6: Final answer
    x = 19,504.44

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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.