Home / 20,156.56-30,233.88-6,115.96

Finding the Fourth Proportional to 20,156.56, 30,233.88 and 6,115.96

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Solution

The fourth proportional to 20,156.56, 30,233.88 and 6,115.96 is: 9,173.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.56 : 30,233.88 = 6,115.96 : x
  2. Step 2: Convert to fraction form
    20,156.56/30,233.88 = 6,115.96/x
  3. Step 3: Cross multiply
    20,156.56x = 30,233.88 × 6,115.96
  4. Step 4: Simplify right side
    20,156.56x = 184,909,200.72
  5. Step 5: Solve for x
    x = 184,909,200.72/20,156.56
  6. Step 6: Final answer
    x = 9,173.65

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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.