Home / 28,288.32-42,438.57-8,299.44

Finding the Fourth Proportional to 28,288.32, 42,438.57 and 8,299.44

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Solution

The fourth proportional to 28,288.32, 42,438.57 and 8,299.44 is: 12,450.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.32 : 42,438.57 = 8,299.44 : x
  2. Step 2: Convert to fraction form
    28,288.32/42,438.57 = 8,299.44/x
  3. Step 3: Cross multiply
    28,288.32x = 42,438.57 × 8,299.44
  4. Step 4: Simplify right side
    28,288.32x = 352,216,365.40
  5. Step 5: Solve for x
    x = 352,216,365.40/28,288.32
  6. Step 6: Final answer
    x = 12,450.95

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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.