Home / 20,255.10-30,383.57-6,214.11

Finding the Fourth Proportional to 20,255.10, 30,383.57 and 6,214.11

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Solution

The fourth proportional to 20,255.10, 30,383.57 and 6,214.11 is: 9,321.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.10 : 30,383.57 = 6,214.11 : x
  2. Step 2: Convert to fraction form
    20,255.10/30,383.57 = 6,214.11/x
  3. Step 3: Cross multiply
    20,255.10x = 30,383.57 × 6,214.11
  4. Step 4: Simplify right side
    20,255.10x = 188,806,846.17
  5. Step 5: Solve for x
    x = 188,806,846.17/20,255.10
  6. Step 6: Final answer
    x = 9,321.45

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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.