Home / 20,265.05-30,408.28-14,379.96

Finding the Fourth Proportional to 20,265.05, 30,408.28 and 14,379.96

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Solution

The fourth proportional to 20,265.05, 30,408.28 and 14,379.96 is: 21,577.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.05 : 30,408.28 = 14,379.96 : x
  2. Step 2: Convert to fraction form
    20,265.05/30,408.28 = 14,379.96/x
  3. Step 3: Cross multiply
    20,265.05x = 30,408.28 × 14,379.96
  4. Step 4: Simplify right side
    20,265.05x = 437,269,928.15
  5. Step 5: Solve for x
    x = 437,269,928.15/20,265.05
  6. Step 6: Final answer
    x = 21,577.54

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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.