Home / 28,310.78-42,466.26-8,589.50

Finding the Fourth Proportional to 28,310.78, 42,466.26 and 8,589.50

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Solution

The fourth proportional to 28,310.78, 42,466.26 and 8,589.50 is: 12,884.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.78 : 42,466.26 = 8,589.50 : x
  2. Step 2: Convert to fraction form
    28,310.78/42,466.26 = 8,589.50/x
  3. Step 3: Cross multiply
    28,310.78x = 42,466.26 × 8,589.50
  4. Step 4: Simplify right side
    28,310.78x = 364,763,940.27
  5. Step 5: Solve for x
    x = 364,763,940.27/28,310.78
  6. Step 6: Final answer
    x = 12,884.28

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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.