Home / 20,120.26-30,180.40-6,269.26

Finding the Fourth Proportional to 20,120.26, 30,180.40 and 6,269.26

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Solution

The fourth proportional to 20,120.26, 30,180.40 and 6,269.26 is: 9,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120.26 : 30,180.40 = 6,269.26 : x
  2. Step 2: Convert to fraction form
    20,120.26/30,180.40 = 6,269.26/x
  3. Step 3: Cross multiply
    20,120.26x = 30,180.40 × 6,269.26
  4. Step 4: Simplify right side
    20,120.26x = 189,208,774.50
  5. Step 5: Solve for x
    x = 189,208,774.50/20,120.26
  6. Step 6: Final answer
    x = 9,403.89

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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.