Home / 20,181.50-30,278.74-6,144.25

Finding the Fourth Proportional to 20,181.50, 30,278.74 and 6,144.25

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Solution

The fourth proportional to 20,181.50, 30,278.74 and 6,144.25 is: 9,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.50 : 30,278.74 = 6,144.25 : x
  2. Step 2: Convert to fraction form
    20,181.50/30,278.74 = 6,144.25/x
  3. Step 3: Cross multiply
    20,181.50x = 30,278.74 × 6,144.25
  4. Step 4: Simplify right side
    20,181.50x = 186,040,072.55
  5. Step 5: Solve for x
    x = 186,040,072.55/20,181.50
  6. Step 6: Final answer
    x = 9,218.35

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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.