Home / 20,200.56-30,299.70-8,349.18

Finding the Fourth Proportional to 20,200.56, 30,299.70 and 8,349.18

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Solution

The fourth proportional to 20,200.56, 30,299.70 and 8,349.18 is: 12,523.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.56 : 30,299.70 = 8,349.18 : x
  2. Step 2: Convert to fraction form
    20,200.56/30,299.70 = 8,349.18/x
  3. Step 3: Cross multiply
    20,200.56x = 30,299.70 × 8,349.18
  4. Step 4: Simplify right side
    20,200.56x = 252,977,649.25
  5. Step 5: Solve for x
    x = 252,977,649.25/20,200.56
  6. Step 6: Final answer
    x = 12,523.30

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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.