Home / 20,504.57-30,766.58-12,200.99

Finding the Fourth Proportional to 20,504.57, 30,766.58 and 12,200.99

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Solution

The fourth proportional to 20,504.57, 30,766.58 and 12,200.99 is: 18,307.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.57 : 30,766.58 = 12,200.99 : x
  2. Step 2: Convert to fraction form
    20,504.57/30,766.58 = 12,200.99/x
  3. Step 3: Cross multiply
    20,504.57x = 30,766.58 × 12,200.99
  4. Step 4: Simplify right side
    20,504.57x = 375,382,842.33
  5. Step 5: Solve for x
    x = 375,382,842.33/20,504.57
  6. Step 6: Final answer
    x = 18,307.27

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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.