Home / 37,511.44-51,765.20-20,515.30

Finding the Fourth Proportional to 37,511.44, 51,765.20 and 20,515.30

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Solution

The fourth proportional to 37,511.44, 51,765.20 and 20,515.30 is: 28,310.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,511.44 : 51,765.20 = 20,515.30 : x
  2. Step 2: Convert to fraction form
    37,511.44/51,765.20 = 20,515.30/x
  3. Step 3: Cross multiply
    37,511.44x = 51,765.20 × 20,515.30
  4. Step 4: Simplify right side
    37,511.44x = 1,061,978,607.56
  5. Step 5: Solve for x
    x = 1,061,978,607.56/37,511.44
  6. Step 6: Final answer
    x = 28,310.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.