Home / 20,236.44-30,336.18-7,081.64

Finding the Fourth Proportional to 20,236.44, 30,336.18 and 7,081.64

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Solution

The fourth proportional to 20,236.44, 30,336.18 and 7,081.64 is: 10,615.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.44 : 30,336.18 = 7,081.64 : x
  2. Step 2: Convert to fraction form
    20,236.44/30,336.18 = 7,081.64/x
  3. Step 3: Cross multiply
    20,236.44x = 30,336.18 × 7,081.64
  4. Step 4: Simplify right side
    20,236.44x = 214,829,905.74
  5. Step 5: Solve for x
    x = 214,829,905.74/20,236.44
  6. Step 6: Final answer
    x = 10,615.99

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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.