Home / 18,847.44-28,275.70-13,311.60

Finding the Fourth Proportional to 18,847.44, 28,275.70 and 13,311.60

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Solution

The fourth proportional to 18,847.44, 28,275.70 and 13,311.60 is: 19,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847.44 : 28,275.70 = 13,311.60 : x
  2. Step 2: Convert to fraction form
    18,847.44/28,275.70 = 13,311.60/x
  3. Step 3: Cross multiply
    18,847.44x = 28,275.70 × 13,311.60
  4. Step 4: Simplify right side
    18,847.44x = 376,394,808.12
  5. Step 5: Solve for x
    x = 376,394,808.12/18,847.44
  6. Step 6: Final answer
    x = 19,970.61

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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.