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Finding the Fourth Proportional to 20,240.08, 30,321.08 and 11,448.08

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Solution

The fourth proportional to 20,240.08, 30,321.08 and 11,448.08 is: 17,150.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.08 : 30,321.08 = 11,448.08 : x
  2. Step 2: Convert to fraction form
    20,240.08/30,321.08 = 11,448.08/x
  3. Step 3: Cross multiply
    20,240.08x = 30,321.08 × 11,448.08
  4. Step 4: Simplify right side
    20,240.08x = 347,118,149.53
  5. Step 5: Solve for x
    x = 347,118,149.53/20,240.08
  6. Step 6: Final answer
    x = 17,150.04

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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.