Home / 30,321.27-45,465.49-10,324.80

Finding the Fourth Proportional to 30,321.27, 45,465.49 and 10,324.80

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Solution

The fourth proportional to 30,321.27, 45,465.49 and 10,324.80 is: 15,481.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,321.27 : 45,465.49 = 10,324.80 : x
  2. Step 2: Convert to fraction form
    30,321.27/45,465.49 = 10,324.80/x
  3. Step 3: Cross multiply
    30,321.27x = 45,465.49 × 10,324.80
  4. Step 4: Simplify right side
    30,321.27x = 469,422,091.15
  5. Step 5: Solve for x
    x = 469,422,091.15/30,321.27
  6. Step 6: Final answer
    x = 15,481.61

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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.