Home / 20,143.26-30,219.59-6,103.39

Finding the Fourth Proportional to 20,143.26, 30,219.59 and 6,103.39

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Solution

The fourth proportional to 20,143.26, 30,219.59 and 6,103.39 is: 9,156.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143.26 : 30,219.59 = 6,103.39 : x
  2. Step 2: Convert to fraction form
    20,143.26/30,219.59 = 6,103.39/x
  3. Step 3: Cross multiply
    20,143.26x = 30,219.59 × 6,103.39
  4. Step 4: Simplify right side
    20,143.26x = 184,441,912.89
  5. Step 5: Solve for x
    x = 184,441,912.89/20,143.26
  6. Step 6: Final answer
    x = 9,156.51

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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.