Home / 20,336.19-30,459.86-8,453.94

Finding the Fourth Proportional to 20,336.19, 30,459.86 and 8,453.94

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Solution

The fourth proportional to 20,336.19, 30,459.86 and 8,453.94 is: 12,662.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.19 : 30,459.86 = 8,453.94 : x
  2. Step 2: Convert to fraction form
    20,336.19/30,459.86 = 8,453.94/x
  3. Step 3: Cross multiply
    20,336.19x = 30,459.86 × 8,453.94
  4. Step 4: Simplify right side
    20,336.19x = 257,505,786.58
  5. Step 5: Solve for x
    x = 257,505,786.58/20,336.19
  6. Step 6: Final answer
    x = 12,662.44

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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.