Home / 20,405.48-30,579.50-16,226.92

Finding the Fourth Proportional to 20,405.48, 30,579.50 and 16,226.92

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Solution

The fourth proportional to 20,405.48, 30,579.50 and 16,226.92 is: 24,317.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405.48 : 30,579.50 = 16,226.92 : x
  2. Step 2: Convert to fraction form
    20,405.48/30,579.50 = 16,226.92/x
  3. Step 3: Cross multiply
    20,405.48x = 30,579.50 × 16,226.92
  4. Step 4: Simplify right side
    20,405.48x = 496,211,100.14
  5. Step 5: Solve for x
    x = 496,211,100.14/20,405.48
  6. Step 6: Final answer
    x = 24,317.54

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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.