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Finding the Fourth Proportional to 20,077, 30,116.22 and 6,225.64

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Solution

The fourth proportional to 20,077, 30,116.22 and 6,225.64 is: 9,338.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077 : 30,116.22 = 6,225.64 : x
  2. Step 2: Convert to fraction form
    20,077/30,116.22 = 6,225.64/x
  3. Step 3: Cross multiply
    20,077x = 30,116.22 × 6,225.64
  4. Step 4: Simplify right side
    20,077x = 187,492,743.88
  5. Step 5: Solve for x
    x = 187,492,743.88/20,077
  6. Step 6: Final answer
    x = 9,338.68

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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.