Home / 30,295.62-45,449.57-12,765.44

Finding the Fourth Proportional to 30,295.62, 45,449.57 and 12,765.44

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Solution

The fourth proportional to 30,295.62, 45,449.57 and 12,765.44 is: 19,150.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,295.62 : 45,449.57 = 12,765.44 : x
  2. Step 2: Convert to fraction form
    30,295.62/45,449.57 = 12,765.44/x
  3. Step 3: Cross multiply
    30,295.62x = 45,449.57 × 12,765.44
  4. Step 4: Simplify right side
    30,295.62x = 580,183,904.40
  5. Step 5: Solve for x
    x = 580,183,904.40/30,295.62
  6. Step 6: Final answer
    x = 19,150.75

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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.