Home / 20,112.84-30,173.60-6,787.18

Finding the Fourth Proportional to 20,112.84, 30,173.60 and 6,787.18

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Solution

The fourth proportional to 20,112.84, 30,173.60 and 6,787.18 is: 10,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.84 : 30,173.60 = 6,787.18 : x
  2. Step 2: Convert to fraction form
    20,112.84/30,173.60 = 6,787.18/x
  3. Step 3: Cross multiply
    20,112.84x = 30,173.60 × 6,787.18
  4. Step 4: Simplify right side
    20,112.84x = 204,793,654.45
  5. Step 5: Solve for x
    x = 204,793,654.45/20,112.84
  6. Step 6: Final answer
    x = 10,182.23

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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.