Home / 20,106.23-30,181.41-15,972.80

Finding the Fourth Proportional to 20,106.23, 30,181.41 and 15,972.80

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Solution

The fourth proportional to 20,106.23, 30,181.41 and 15,972.80 is: 23,976.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.23 : 30,181.41 = 15,972.80 : x
  2. Step 2: Convert to fraction form
    20,106.23/30,181.41 = 15,972.80/x
  3. Step 3: Cross multiply
    20,106.23x = 30,181.41 × 15,972.80
  4. Step 4: Simplify right side
    20,106.23x = 482,081,474.74
  5. Step 5: Solve for x
    x = 482,081,474.74/20,106.23
  6. Step 6: Final answer
    x = 23,976.73

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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.