Home / 20,144.32-30,216.48-6,293.32

Finding the Fourth Proportional to 20,144.32, 30,216.48 and 6,293.32

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Solution

The fourth proportional to 20,144.32, 30,216.48 and 6,293.32 is: 9,439.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.32 : 30,216.48 = 6,293.32 : x
  2. Step 2: Convert to fraction form
    20,144.32/30,216.48 = 6,293.32/x
  3. Step 3: Cross multiply
    20,144.32x = 30,216.48 × 6,293.32
  4. Step 4: Simplify right side
    20,144.32x = 190,161,990.31
  5. Step 5: Solve for x
    x = 190,161,990.31/20,144.32
  6. Step 6: Final answer
    x = 9,439.98

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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.