Home / 20,285.08-30,427.68-6,245

Finding the Fourth Proportional to 20,285.08, 30,427.68 and 6,245

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Solution

The fourth proportional to 20,285.08, 30,427.68 and 6,245 is: 9,367.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285.08 : 30,427.68 = 6,245 : x
  2. Step 2: Convert to fraction form
    20,285.08/30,427.68 = 6,245/x
  3. Step 3: Cross multiply
    20,285.08x = 30,427.68 × 6,245
  4. Step 4: Simplify right side
    20,285.08x = 190,020,861.60
  5. Step 5: Solve for x
    x = 190,020,861.60/20,285.08
  6. Step 6: Final answer
    x = 9,367.52

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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.