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Finding the Fourth Proportional to 20,462.62, 30,693.03 and 6,422.32

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Solution

The fourth proportional to 20,462.62, 30,693.03 and 6,422.32 is: 9,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,462.62 : 30,693.03 = 6,422.32 : x
  2. Step 2: Convert to fraction form
    20,462.62/30,693.03 = 6,422.32/x
  3. Step 3: Cross multiply
    20,462.62x = 30,693.03 × 6,422.32
  4. Step 4: Simplify right side
    20,462.62x = 197,120,460.43
  5. Step 5: Solve for x
    x = 197,120,460.43/20,462.62
  6. Step 6: Final answer
    x = 9,633.20

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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.