Home / 20,509.19-30,766.83-6,467.73

Finding the Fourth Proportional to 20,509.19, 30,766.83 and 6,467.73

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Solution

The fourth proportional to 20,509.19, 30,766.83 and 6,467.73 is: 9,702.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509.19 : 30,766.83 = 6,467.73 : x
  2. Step 2: Convert to fraction form
    20,509.19/30,766.83 = 6,467.73/x
  3. Step 3: Cross multiply
    20,509.19x = 30,766.83 × 6,467.73
  4. Step 4: Simplify right side
    20,509.19x = 198,991,549.40
  5. Step 5: Solve for x
    x = 198,991,549.40/20,509.19
  6. Step 6: Final answer
    x = 9,702.56

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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.