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Finding the Fourth Proportional to 20,608.30, 30,914.88 and 6,563.42

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Solution

The fourth proportional to 20,608.30, 30,914.88 and 6,563.42 is: 9,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.30 : 30,914.88 = 6,563.42 : x
  2. Step 2: Convert to fraction form
    20,608.30/30,914.88 = 6,563.42/x
  3. Step 3: Cross multiply
    20,608.30x = 30,914.88 × 6,563.42
  4. Step 4: Simplify right side
    20,608.30x = 202,907,341.69
  5. Step 5: Solve for x
    x = 202,907,341.69/20,608.30
  6. Step 6: Final answer
    x = 9,845.90

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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.