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Finding the Fourth Proportional to 20,604.63, 30,904.17 and 5,814.73

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Solution

The fourth proportional to 20,604.63, 30,904.17 and 5,814.73 is: 8,721.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604.63 : 30,904.17 = 5,814.73 : x
  2. Step 2: Convert to fraction form
    20,604.63/30,904.17 = 5,814.73/x
  3. Step 3: Cross multiply
    20,604.63x = 30,904.17 × 5,814.73
  4. Step 4: Simplify right side
    20,604.63x = 179,699,404.42
  5. Step 5: Solve for x
    x = 179,699,404.42/20,604.63
  6. Step 6: Final answer
    x = 8,721.31

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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.