Home / 20,405.56-30,579.60-16,227.03

Finding the Fourth Proportional to 20,405.56, 30,579.60 and 16,227.03

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Solution

The fourth proportional to 20,405.56, 30,579.60 and 16,227.03 is: 24,317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405.56 : 30,579.60 = 16,227.03 : x
  2. Step 2: Convert to fraction form
    20,405.56/30,579.60 = 16,227.03/x
  3. Step 3: Cross multiply
    20,405.56x = 30,579.60 × 16,227.03
  4. Step 4: Simplify right side
    20,405.56x = 496,216,086.59
  5. Step 5: Solve for x
    x = 496,216,086.59/20,405.56
  6. Step 6: Final answer
    x = 24,317.69

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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.