Home / 20,167.22-30,252.43-6,128.47

Finding the Fourth Proportional to 20,167.22, 30,252.43 and 6,128.47

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Solution

The fourth proportional to 20,167.22, 30,252.43 and 6,128.47 is: 9,193.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.22 : 30,252.43 = 6,128.47 : x
  2. Step 2: Convert to fraction form
    20,167.22/30,252.43 = 6,128.47/x
  3. Step 3: Cross multiply
    20,167.22x = 30,252.43 × 6,128.47
  4. Step 4: Simplify right side
    20,167.22x = 185,401,063.96
  5. Step 5: Solve for x
    x = 185,401,063.96/20,167.22
  6. Step 6: Final answer
    x = 9,193.19

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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.