Home / 20,654.44-30,970.66-8,173.96

Finding the Fourth Proportional to 20,654.44, 30,970.66 and 8,173.96

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Solution

The fourth proportional to 20,654.44, 30,970.66 and 8,173.96 is: 12,256.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.44 : 30,970.66 = 8,173.96 : x
  2. Step 2: Convert to fraction form
    20,654.44/30,970.66 = 8,173.96/x
  3. Step 3: Cross multiply
    20,654.44x = 30,970.66 × 8,173.96
  4. Step 4: Simplify right side
    20,654.44x = 253,152,936.01
  5. Step 5: Solve for x
    x = 253,152,936.01/20,654.44
  6. Step 6: Final answer
    x = 12,256.59

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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.