Home / 30,197.44-45,281.54-12,662.56

Finding the Fourth Proportional to 30,197.44, 45,281.54 and 12,662.56

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Solution

The fourth proportional to 30,197.44, 45,281.54 and 12,662.56 is: 18,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,197.44 : 45,281.54 = 12,662.56 : x
  2. Step 2: Convert to fraction form
    30,197.44/45,281.54 = 12,662.56/x
  3. Step 3: Cross multiply
    30,197.44x = 45,281.54 × 12,662.56
  4. Step 4: Simplify right side
    30,197.44x = 573,380,217.14
  5. Step 5: Solve for x
    x = 573,380,217.14/30,197.44
  6. Step 6: Final answer
    x = 18,987.71

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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.