Home / 30,238.62-45,357.93-12,469.02

Finding the Fourth Proportional to 30,238.62, 45,357.93 and 12,469.02

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Solution

The fourth proportional to 30,238.62, 45,357.93 and 12,469.02 is: 18,703.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.62 : 45,357.93 = 12,469.02 : x
  2. Step 2: Convert to fraction form
    30,238.62/45,357.93 = 12,469.02/x
  3. Step 3: Cross multiply
    30,238.62x = 45,357.93 × 12,469.02
  4. Step 4: Simplify right side
    30,238.62x = 565,568,936.33
  5. Step 5: Solve for x
    x = 565,568,936.33/30,238.62
  6. Step 6: Final answer
    x = 18,703.53

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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.