Home / 30,249.42-45,378.78-15,450.30

Finding the Fourth Proportional to 30,249.42, 45,378.78 and 15,450.30

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Solution

The fourth proportional to 30,249.42, 45,378.78 and 15,450.30 is: 23,177.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,249.42 : 45,378.78 = 15,450.30 : x
  2. Step 2: Convert to fraction form
    30,249.42/45,378.78 = 15,450.30/x
  3. Step 3: Cross multiply
    30,249.42x = 45,378.78 × 15,450.30
  4. Step 4: Simplify right side
    30,249.42x = 701,115,764.63
  5. Step 5: Solve for x
    x = 701,115,764.63/30,249.42
  6. Step 6: Final answer
    x = 23,177.83

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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.