Home / 20,171.21-30,256.81-6,131.35

Finding the Fourth Proportional to 20,171.21, 30,256.81 and 6,131.35

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Solution

The fourth proportional to 20,171.21, 30,256.81 and 6,131.35 is: 9,197.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.21 : 30,256.81 = 6,131.35 : x
  2. Step 2: Convert to fraction form
    20,171.21/30,256.81 = 6,131.35/x
  3. Step 3: Cross multiply
    20,171.21x = 30,256.81 × 6,131.35
  4. Step 4: Simplify right side
    20,171.21x = 185,515,091.99
  5. Step 5: Solve for x
    x = 185,515,091.99/20,171.21
  6. Step 6: Final answer
    x = 9,197.02

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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.