Home / 20,190.43-30,285.68-9,657.97

Finding the Fourth Proportional to 20,190.43, 30,285.68 and 9,657.97

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Solution

The fourth proportional to 20,190.43, 30,285.68 and 9,657.97 is: 14,486.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.43 : 30,285.68 = 9,657.97 : x
  2. Step 2: Convert to fraction form
    20,190.43/30,285.68 = 9,657.97/x
  3. Step 3: Cross multiply
    20,190.43x = 30,285.68 × 9,657.97
  4. Step 4: Simplify right side
    20,190.43x = 292,498,188.87
  5. Step 5: Solve for x
    x = 292,498,188.87/20,190.43
  6. Step 6: Final answer
    x = 14,486.97

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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.