Home / 20,126.90-30,190.35-14,942.90

Finding the Fourth Proportional to 20,126.90, 30,190.35 and 14,942.90

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Solution

The fourth proportional to 20,126.90, 30,190.35 and 14,942.90 is: 22,414.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.90 : 30,190.35 = 14,942.90 : x
  2. Step 2: Convert to fraction form
    20,126.90/30,190.35 = 14,942.90/x
  3. Step 3: Cross multiply
    20,126.90x = 30,190.35 × 14,942.90
  4. Step 4: Simplify right side
    20,126.90x = 451,131,381.02
  5. Step 5: Solve for x
    x = 451,131,381.02/20,126.90
  6. Step 6: Final answer
    x = 22,414.35

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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.