Home / 20,181.78-30,254.22-8,495.82

Finding the Fourth Proportional to 20,181.78, 30,254.22 and 8,495.82

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Solution

The fourth proportional to 20,181.78, 30,254.22 and 8,495.82 is: 12,735.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.78 : 30,254.22 = 8,495.82 : x
  2. Step 2: Convert to fraction form
    20,181.78/30,254.22 = 8,495.82/x
  3. Step 3: Cross multiply
    20,181.78x = 30,254.22 × 8,495.82
  4. Step 4: Simplify right side
    20,181.78x = 257,034,407.36
  5. Step 5: Solve for x
    x = 257,034,407.36/20,181.78
  6. Step 6: Final answer
    x = 12,735.96

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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.