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Finding the Fourth Proportional to 20,259.66, 30,380.06 and 6,216.08

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Solution

The fourth proportional to 20,259.66, 30,380.06 and 6,216.08 is: 9,321.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.66 : 30,380.06 = 6,216.08 : x
  2. Step 2: Convert to fraction form
    20,259.66/30,380.06 = 6,216.08/x
  3. Step 3: Cross multiply
    20,259.66x = 30,380.06 × 6,216.08
  4. Step 4: Simplify right side
    20,259.66x = 188,844,883.36
  5. Step 5: Solve for x
    x = 188,844,883.36/20,259.66
  6. Step 6: Final answer
    x = 9,321.23

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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.