Home / 20,468.46-30,703.77-6,618.54

Finding the Fourth Proportional to 20,468.46, 30,703.77 and 6,618.54

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Solution

The fourth proportional to 20,468.46, 30,703.77 and 6,618.54 is: 9,928.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468.46 : 30,703.77 = 6,618.54 : x
  2. Step 2: Convert to fraction form
    20,468.46/30,703.77 = 6,618.54/x
  3. Step 3: Cross multiply
    20,468.46x = 30,703.77 × 6,618.54
  4. Step 4: Simplify right side
    20,468.46x = 203,214,129.90
  5. Step 5: Solve for x
    x = 203,214,129.90/20,468.46
  6. Step 6: Final answer
    x = 9,928.16

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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.