Home / 20,197.59-30,297.62-8,511.72

Finding the Fourth Proportional to 20,197.59, 30,297.62 and 8,511.72

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Solution

The fourth proportional to 20,197.59, 30,297.62 and 8,511.72 is: 12,768.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.59 : 30,297.62 = 8,511.72 : x
  2. Step 2: Convert to fraction form
    20,197.59/30,297.62 = 8,511.72/x
  3. Step 3: Cross multiply
    20,197.59x = 30,297.62 × 8,511.72
  4. Step 4: Simplify right side
    20,197.59x = 257,884,858.11
  5. Step 5: Solve for x
    x = 257,884,858.11/20,197.59
  6. Step 6: Final answer
    x = 12,768.10

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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.