Home / 20,516.43-30,832.35-12,197.94

Finding the Fourth Proportional to 20,516.43, 30,832.35 and 12,197.94

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Solution

The fourth proportional to 20,516.43, 30,832.35 and 12,197.94 is: 18,331.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.43 : 30,832.35 = 12,197.94 : x
  2. Step 2: Convert to fraction form
    20,516.43/30,832.35 = 12,197.94/x
  3. Step 3: Cross multiply
    20,516.43x = 30,832.35 × 12,197.94
  4. Step 4: Simplify right side
    20,516.43x = 376,091,155.36
  5. Step 5: Solve for x
    x = 376,091,155.36/20,516.43
  6. Step 6: Final answer
    x = 18,331.22

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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.