Home / 20,035.49-30,080.57-10,181.73

Finding the Fourth Proportional to 20,035.49, 30,080.57 and 10,181.73

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Solution

The fourth proportional to 20,035.49, 30,080.57 and 10,181.73 is: 15,286.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,035.49 : 30,080.57 = 10,181.73 : x
  2. Step 2: Convert to fraction form
    20,035.49/30,080.57 = 10,181.73/x
  3. Step 3: Cross multiply
    20,035.49x = 30,080.57 × 10,181.73
  4. Step 4: Simplify right side
    20,035.49x = 306,272,303.88
  5. Step 5: Solve for x
    x = 306,272,303.88/20,035.49
  6. Step 6: Final answer
    x = 15,286.49

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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.