Home / 20,169.90-30,250.53-6,311.34

Finding the Fourth Proportional to 20,169.90, 30,250.53 and 6,311.34

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Solution

The fourth proportional to 20,169.90, 30,250.53 and 6,311.34 is: 9,465.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.90 : 30,250.53 = 6,311.34 : x
  2. Step 2: Convert to fraction form
    20,169.90/30,250.53 = 6,311.34/x
  3. Step 3: Cross multiply
    20,169.90x = 30,250.53 × 6,311.34
  4. Step 4: Simplify right side
    20,169.90x = 190,921,380.01
  5. Step 5: Solve for x
    x = 190,921,380.01/20,169.90
  6. Step 6: Final answer
    x = 9,465.66

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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.