Home / 20,336.36-30,454.86-12,534.44

Finding the Fourth Proportional to 20,336.36, 30,454.86 and 12,534.44

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Solution

The fourth proportional to 20,336.36, 30,454.86 and 12,534.44 is: 18,771.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.36 : 30,454.86 = 12,534.44 : x
  2. Step 2: Convert to fraction form
    20,336.36/30,454.86 = 12,534.44/x
  3. Step 3: Cross multiply
    20,336.36x = 30,454.86 × 12,534.44
  4. Step 4: Simplify right side
    20,336.36x = 381,734,615.38
  5. Step 5: Solve for x
    x = 381,734,615.38/20,336.36
  6. Step 6: Final answer
    x = 18,771.04

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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.