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Finding the Fourth Proportional to 20,496.08, 30,751.62 and 8,652.80

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Solution

The fourth proportional to 20,496.08, 30,751.62 and 8,652.80 is: 12,982.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496.08 : 30,751.62 = 8,652.80 : x
  2. Step 2: Convert to fraction form
    20,496.08/30,751.62 = 8,652.80/x
  3. Step 3: Cross multiply
    20,496.08x = 30,751.62 × 8,652.80
  4. Step 4: Simplify right side
    20,496.08x = 266,087,617.54
  5. Step 5: Solve for x
    x = 266,087,617.54/20,496.08
  6. Step 6: Final answer
    x = 12,982.37

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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.