Home / 20,160.42-30,245.50-19,825.68

Finding the Fourth Proportional to 20,160.42, 30,245.50 and 19,825.68

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Solution

The fourth proportional to 20,160.42, 30,245.50 and 19,825.68 is: 29,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.42 : 30,245.50 = 19,825.68 : x
  2. Step 2: Convert to fraction form
    20,160.42/30,245.50 = 19,825.68/x
  3. Step 3: Cross multiply
    20,160.42x = 30,245.50 × 19,825.68
  4. Step 4: Simplify right side
    20,160.42x = 599,637,604.44
  5. Step 5: Solve for x
    x = 599,637,604.44/20,160.42
  6. Step 6: Final answer
    x = 29,743.31

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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.