Home / 30,345.87-45,517.38-10,628.85

Finding the Fourth Proportional to 30,345.87, 45,517.38 and 10,628.85

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Solution

The fourth proportional to 30,345.87, 45,517.38 and 10,628.85 is: 15,942.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,345.87 : 45,517.38 = 10,628.85 : x
  2. Step 2: Convert to fraction form
    30,345.87/45,517.38 = 10,628.85/x
  3. Step 3: Cross multiply
    30,345.87x = 45,517.38 × 10,628.85
  4. Step 4: Simplify right side
    30,345.87x = 483,797,404.41
  5. Step 5: Solve for x
    x = 483,797,404.41/30,345.87
  6. Step 6: Final answer
    x = 15,942.78

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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.