Home / 20,100.03-30,142.98-8,250.38

Finding the Fourth Proportional to 20,100.03, 30,142.98 and 8,250.38

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Solution

The fourth proportional to 20,100.03, 30,142.98 and 8,250.38 is: 12,372.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.03 : 30,142.98 = 8,250.38 : x
  2. Step 2: Convert to fraction form
    20,100.03/30,142.98 = 8,250.38/x
  3. Step 3: Cross multiply
    20,100.03x = 30,142.98 × 8,250.38
  4. Step 4: Simplify right side
    20,100.03x = 248,690,888.62
  5. Step 5: Solve for x
    x = 248,690,888.62/20,100.03
  6. Step 6: Final answer
    x = 12,372.66

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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.