Home / 20,261.52-30,333.60-12,446.64

Finding the Fourth Proportional to 20,261.52, 30,333.60 and 12,446.64

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Solution

The fourth proportional to 20,261.52, 30,333.60 and 12,446.64 is: 18,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.52 : 30,333.60 = 12,446.64 : x
  2. Step 2: Convert to fraction form
    20,261.52/30,333.60 = 12,446.64/x
  3. Step 3: Cross multiply
    20,261.52x = 30,333.60 × 12,446.64
  4. Step 4: Simplify right side
    20,261.52x = 377,551,399.10
  5. Step 5: Solve for x
    x = 377,551,399.10/20,261.52
  6. Step 6: Final answer
    x = 18,633.91

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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.