Home / 20,135.92-30,190.53-9,607.56

Finding the Fourth Proportional to 20,135.92, 30,190.53 and 9,607.56

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Solution

The fourth proportional to 20,135.92, 30,190.53 and 9,607.56 is: 14,404.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.92 : 30,190.53 = 9,607.56 : x
  2. Step 2: Convert to fraction form
    20,135.92/30,190.53 = 9,607.56/x
  3. Step 3: Cross multiply
    20,135.92x = 30,190.53 × 9,607.56
  4. Step 4: Simplify right side
    20,135.92x = 290,057,328.41
  5. Step 5: Solve for x
    x = 290,057,328.41/20,135.92
  6. Step 6: Final answer
    x = 14,404.97

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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.