Home / 20,850.92-31,276.53-16,685.60

Finding the Fourth Proportional to 20,850.92, 31,276.53 and 16,685.60

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Solution

The fourth proportional to 20,850.92, 31,276.53 and 16,685.60 is: 25,028.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.92 : 31,276.53 = 16,685.60 : x
  2. Step 2: Convert to fraction form
    20,850.92/31,276.53 = 16,685.60/x
  3. Step 3: Cross multiply
    20,850.92x = 31,276.53 × 16,685.60
  4. Step 4: Simplify right side
    20,850.92x = 521,867,512.59
  5. Step 5: Solve for x
    x = 521,867,512.59/20,850.92
  6. Step 6: Final answer
    x = 25,028.51

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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.