Home / 18,735.20-28,098.30-10,820.60

Finding the Fourth Proportional to 18,735.20, 28,098.30 and 10,820.60

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Solution

The fourth proportional to 18,735.20, 28,098.30 and 10,820.60 is: 16,228.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.20 : 28,098.30 = 10,820.60 : x
  2. Step 2: Convert to fraction form
    18,735.20/28,098.30 = 10,820.60/x
  3. Step 3: Cross multiply
    18,735.20x = 28,098.30 × 10,820.60
  4. Step 4: Simplify right side
    18,735.20x = 304,040,464.98
  5. Step 5: Solve for x
    x = 304,040,464.98/18,735.20
  6. Step 6: Final answer
    x = 16,228.30

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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.