Home / 20,171.30-30,257.01-8,484.48

Finding the Fourth Proportional to 20,171.30, 30,257.01 and 8,484.48

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Solution

The fourth proportional to 20,171.30, 30,257.01 and 8,484.48 is: 12,726.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.30 : 30,257.01 = 8,484.48 : x
  2. Step 2: Convert to fraction form
    20,171.30/30,257.01 = 8,484.48/x
  3. Step 3: Cross multiply
    20,171.30x = 30,257.01 × 8,484.48
  4. Step 4: Simplify right side
    20,171.30x = 256,714,996.20
  5. Step 5: Solve for x
    x = 256,714,996.20/20,171.30
  6. Step 6: Final answer
    x = 12,726.75

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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.