Home / 20,185.67-30,274.92-6,142.29

Finding the Fourth Proportional to 20,185.67, 30,274.92 and 6,142.29

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Solution

The fourth proportional to 20,185.67, 30,274.92 and 6,142.29 is: 9,212.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.67 : 30,274.92 = 6,142.29 : x
  2. Step 2: Convert to fraction form
    20,185.67/30,274.92 = 6,142.29/x
  3. Step 3: Cross multiply
    20,185.67x = 30,274.92 × 6,142.29
  4. Step 4: Simplify right side
    20,185.67x = 185,957,338.37
  5. Step 5: Solve for x
    x = 185,957,338.37/20,185.67
  6. Step 6: Final answer
    x = 9,212.35

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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.