Home / 20,186.46-30,150.49-18,283.94

Finding the Fourth Proportional to 20,186.46, 30,150.49 and 18,283.94

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Solution

The fourth proportional to 20,186.46, 30,150.49 and 18,283.94 is: 27,308.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.46 : 30,150.49 = 18,283.94 : x
  2. Step 2: Convert to fraction form
    20,186.46/30,150.49 = 18,283.94/x
  3. Step 3: Cross multiply
    20,186.46x = 30,150.49 × 18,283.94
  4. Step 4: Simplify right side
    20,186.46x = 551,269,553.67
  5. Step 5: Solve for x
    x = 551,269,553.67/20,186.46
  6. Step 6: Final answer
    x = 27,308.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.