Home / 20,160.54-30,240.82-16,690.50

Finding the Fourth Proportional to 20,160.54, 30,240.82 and 16,690.50

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Solution

The fourth proportional to 20,160.54, 30,240.82 and 16,690.50 is: 25,035.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.54 : 30,240.82 = 16,690.50 : x
  2. Step 2: Convert to fraction form
    20,160.54/30,240.82 = 16,690.50/x
  3. Step 3: Cross multiply
    20,160.54x = 30,240.82 × 16,690.50
  4. Step 4: Simplify right side
    20,160.54x = 504,734,406.21
  5. Step 5: Solve for x
    x = 504,734,406.21/20,160.54
  6. Step 6: Final answer
    x = 25,035.76

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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.