Home / 20,816.08-28,659.60-16,850.32

Finding the Fourth Proportional to 20,816.08, 28,659.60 and 16,850.32

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Solution

The fourth proportional to 20,816.08, 28,659.60 and 16,850.32 is: 23,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816.08 : 28,659.60 = 16,850.32 : x
  2. Step 2: Convert to fraction form
    20,816.08/28,659.60 = 16,850.32/x
  3. Step 3: Cross multiply
    20,816.08x = 28,659.60 × 16,850.32
  4. Step 4: Simplify right side
    20,816.08x = 482,923,431.07
  5. Step 5: Solve for x
    x = 482,923,431.07/20,816.08
  6. Step 6: Final answer
    x = 23,199.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.