Home / 20,408.28-30,609.52-6,555.48

Finding the Fourth Proportional to 20,408.28, 30,609.52 and 6,555.48

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Solution

The fourth proportional to 20,408.28, 30,609.52 and 6,555.48 is: 9,832.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.28 : 30,609.52 = 6,555.48 : x
  2. Step 2: Convert to fraction form
    20,408.28/30,609.52 = 6,555.48/x
  3. Step 3: Cross multiply
    20,408.28x = 30,609.52 × 6,555.48
  4. Step 4: Simplify right side
    20,408.28x = 200,660,096.17
  5. Step 5: Solve for x
    x = 200,660,096.17/20,408.28
  6. Step 6: Final answer
    x = 9,832.29

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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.