Home / 18,829.78-28,245.41-5,682.15

Finding the Fourth Proportional to 18,829.78, 28,245.41 and 5,682.15

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Solution

The fourth proportional to 18,829.78, 28,245.41 and 5,682.15 is: 8,523.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.78 : 28,245.41 = 5,682.15 : x
  2. Step 2: Convert to fraction form
    18,829.78/28,245.41 = 5,682.15/x
  3. Step 3: Cross multiply
    18,829.78x = 28,245.41 × 5,682.15
  4. Step 4: Simplify right side
    18,829.78x = 160,494,698.63
  5. Step 5: Solve for x
    x = 160,494,698.63/18,829.78
  6. Step 6: Final answer
    x = 8,523.45

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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.