Home / 20,200.11-30,299.90-7,052.46

Finding the Fourth Proportional to 20,200.11, 30,299.90 and 7,052.46

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Solution

The fourth proportional to 20,200.11, 30,299.90 and 7,052.46 is: 10,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.11 : 30,299.90 = 7,052.46 : x
  2. Step 2: Convert to fraction form
    20,200.11/30,299.90 = 7,052.46/x
  3. Step 3: Cross multiply
    20,200.11x = 30,299.90 × 7,052.46
  4. Step 4: Simplify right side
    20,200.11x = 213,688,797.49
  5. Step 5: Solve for x
    x = 213,688,797.49/20,200.11
  6. Step 6: Final answer
    x = 10,578.60

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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.