Home / 20,215.44-30,321.68-6,368.40

Finding the Fourth Proportional to 20,215.44, 30,321.68 and 6,368.40

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Solution

The fourth proportional to 20,215.44, 30,321.68 and 6,368.40 is: 9,552.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.44 : 30,321.68 = 6,368.40 : x
  2. Step 2: Convert to fraction form
    20,215.44/30,321.68 = 6,368.40/x
  3. Step 3: Cross multiply
    20,215.44x = 30,321.68 × 6,368.40
  4. Step 4: Simplify right side
    20,215.44x = 193,100,586.91
  5. Step 5: Solve for x
    x = 193,100,586.91/20,215.44
  6. Step 6: Final answer
    x = 9,552.13

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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.