Home / 33,812.20-50,621.10-20,690.20

Finding the Fourth Proportional to 33,812.20, 50,621.10 and 20,690.20

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Solution

The fourth proportional to 33,812.20, 50,621.10 and 20,690.20 is: 30,975.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,812.20 : 50,621.10 = 20,690.20 : x
  2. Step 2: Convert to fraction form
    33,812.20/50,621.10 = 20,690.20/x
  3. Step 3: Cross multiply
    33,812.20x = 50,621.10 × 20,690.20
  4. Step 4: Simplify right side
    33,812.20x = 1,047,360,683.22
  5. Step 5: Solve for x
    x = 1,047,360,683.22/33,812.20
  6. Step 6: Final answer
    x = 30,975.82

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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.