Home / 20,010.96-30,022.92-9,621.36

Finding the Fourth Proportional to 20,010.96, 30,022.92 and 9,621.36

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Solution

The fourth proportional to 20,010.96, 30,022.92 and 9,621.36 is: 14,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.96 : 30,022.92 = 9,621.36 : x
  2. Step 2: Convert to fraction form
    20,010.96/30,022.92 = 9,621.36/x
  3. Step 3: Cross multiply
    20,010.96x = 30,022.92 × 9,621.36
  4. Step 4: Simplify right side
    20,010.96x = 288,861,321.57
  5. Step 5: Solve for x
    x = 288,861,321.57/20,010.96
  6. Step 6: Final answer
    x = 14,435.16

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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.