Home / 20,420.55-30,635.19-7,093.96

Finding the Fourth Proportional to 20,420.55, 30,635.19 and 7,093.96

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Solution

The fourth proportional to 20,420.55, 30,635.19 and 7,093.96 is: 10,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,420.55 : 30,635.19 = 7,093.96 : x
  2. Step 2: Convert to fraction form
    20,420.55/30,635.19 = 7,093.96/x
  3. Step 3: Cross multiply
    20,420.55x = 30,635.19 × 7,093.96
  4. Step 4: Simplify right side
    20,420.55x = 217,324,735.86
  5. Step 5: Solve for x
    x = 217,324,735.86/20,420.55
  6. Step 6: Final answer
    x = 10,642.45

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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.