Home / 30,245.44-45,321.96-12,705.68

Finding the Fourth Proportional to 30,245.44, 45,321.96 and 12,705.68

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Solution

The fourth proportional to 30,245.44, 45,321.96 and 12,705.68 is: 19,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.44 : 45,321.96 = 12,705.68 : x
  2. Step 2: Convert to fraction form
    30,245.44/45,321.96 = 12,705.68/x
  3. Step 3: Cross multiply
    30,245.44x = 45,321.96 × 12,705.68
  4. Step 4: Simplify right side
    30,245.44x = 575,846,320.73
  5. Step 5: Solve for x
    x = 575,846,320.73/30,245.44
  6. Step 6: Final answer
    x = 19,039.11

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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.