Home / 30,183.54-45,260.10-10,456.80

Finding the Fourth Proportional to 30,183.54, 45,260.10 and 10,456.80

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Solution

The fourth proportional to 30,183.54, 45,260.10 and 10,456.80 is: 15,679.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,183.54 : 45,260.10 = 10,456.80 : x
  2. Step 2: Convert to fraction form
    30,183.54/45,260.10 = 10,456.80/x
  3. Step 3: Cross multiply
    30,183.54x = 45,260.10 × 10,456.80
  4. Step 4: Simplify right side
    30,183.54x = 473,275,813.68
  5. Step 5: Solve for x
    x = 473,275,813.68/30,183.54
  6. Step 6: Final answer
    x = 15,679.93

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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.