Home / 20,120.74-30,184.35-6,266.50

Finding the Fourth Proportional to 20,120.74, 30,184.35 and 6,266.50

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Solution

The fourth proportional to 20,120.74, 30,184.35 and 6,266.50 is: 9,400.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120.74 : 30,184.35 = 6,266.50 : x
  2. Step 2: Convert to fraction form
    20,120.74/30,184.35 = 6,266.50/x
  3. Step 3: Cross multiply
    20,120.74x = 30,184.35 × 6,266.50
  4. Step 4: Simplify right side
    20,120.74x = 189,150,229.28
  5. Step 5: Solve for x
    x = 189,150,229.28/20,120.74
  6. Step 6: Final answer
    x = 9,400.76

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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.