Home / 20,269.18-30,408.45-6,418.18

Finding the Fourth Proportional to 20,269.18, 30,408.45 and 6,418.18

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Solution

The fourth proportional to 20,269.18, 30,408.45 and 6,418.18 is: 9,628.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.18 : 30,408.45 = 6,418.18 : x
  2. Step 2: Convert to fraction form
    20,269.18/30,408.45 = 6,418.18/x
  3. Step 3: Cross multiply
    20,269.18x = 30,408.45 × 6,418.18
  4. Step 4: Simplify right side
    20,269.18x = 195,166,905.62
  5. Step 5: Solve for x
    x = 195,166,905.62/20,269.18
  6. Step 6: Final answer
    x = 9,628.75

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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.