Home / 20,017.72-30,003.13-8,164.10

Finding the Fourth Proportional to 20,017.72, 30,003.13 and 8,164.10

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Solution

The fourth proportional to 20,017.72, 30,003.13 and 8,164.10 is: 12,236.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.72 : 30,003.13 = 8,164.10 : x
  2. Step 2: Convert to fraction form
    20,017.72/30,003.13 = 8,164.10/x
  3. Step 3: Cross multiply
    20,017.72x = 30,003.13 × 8,164.10
  4. Step 4: Simplify right side
    20,017.72x = 244,948,553.63
  5. Step 5: Solve for x
    x = 244,948,553.63/20,017.72
  6. Step 6: Final answer
    x = 12,236.59

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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.