Home / 8,020.20-12,030.30-2,826.60

Finding the Fourth Proportional to 8,020.20, 12,030.30 and 2,826.60

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Solution

The fourth proportional to 8,020.20, 12,030.30 and 2,826.60 is: 4,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.20 : 12,030.30 = 2,826.60 : x
  2. Step 2: Convert to fraction form
    8,020.20/12,030.30 = 2,826.60/x
  3. Step 3: Cross multiply
    8,020.20x = 12,030.30 × 2,826.60
  4. Step 4: Simplify right side
    8,020.20x = 34,004,845.98
  5. Step 5: Solve for x
    x = 34,004,845.98/8,020.20
  6. Step 6: Final answer
    x = 4,239.90

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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.