Home / 30,180.74-45,315.54-16,879.79

Finding the Fourth Proportional to 30,180.74, 45,315.54 and 16,879.79

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Solution

The fourth proportional to 30,180.74, 45,315.54 and 16,879.79 is: 25,344.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,180.74 : 45,315.54 = 16,879.79 : x
  2. Step 2: Convert to fraction form
    30,180.74/45,315.54 = 16,879.79/x
  3. Step 3: Cross multiply
    30,180.74x = 45,315.54 × 16,879.79
  4. Step 4: Simplify right side
    30,180.74x = 764,916,714.54
  5. Step 5: Solve for x
    x = 764,916,714.54/30,180.74
  6. Step 6: Final answer
    x = 25,344.54

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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.