Home / 20,536.44-28,327.50-12,147

Finding the Fourth Proportional to 20,536.44, 28,327.50 and 12,147

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Solution

The fourth proportional to 20,536.44, 28,327.50 and 12,147 is: 16,755.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536.44 : 28,327.50 = 12,147 : x
  2. Step 2: Convert to fraction form
    20,536.44/28,327.50 = 12,147/x
  3. Step 3: Cross multiply
    20,536.44x = 28,327.50 × 12,147
  4. Step 4: Simplify right side
    20,536.44x = 344,094,142.50
  5. Step 5: Solve for x
    x = 344,094,142.50/20,536.44
  6. Step 6: Final answer
    x = 16,755.30

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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.