Home / 20,181.14-30,290.42-10,192.90

Finding the Fourth Proportional to 20,181.14, 30,290.42 and 10,192.90

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Solution

The fourth proportional to 20,181.14, 30,290.42 and 10,192.90 is: 15,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.14 : 30,290.42 = 10,192.90 : x
  2. Step 2: Convert to fraction form
    20,181.14/30,290.42 = 10,192.90/x
  3. Step 3: Cross multiply
    20,181.14x = 30,290.42 × 10,192.90
  4. Step 4: Simplify right side
    20,181.14x = 308,747,246.96
  5. Step 5: Solve for x
    x = 308,747,246.96/20,181.14
  6. Step 6: Final answer
    x = 15,298.80

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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.