Home / 12,020.55-18,030.92-3,255.54

Finding the Fourth Proportional to 12,020.55, 18,030.92 and 3,255.54

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Solution

The fourth proportional to 12,020.55, 18,030.92 and 3,255.54 is: 4,883.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.55 : 18,030.92 = 3,255.54 : x
  2. Step 2: Convert to fraction form
    12,020.55/18,030.92 = 3,255.54/x
  3. Step 3: Cross multiply
    12,020.55x = 18,030.92 × 3,255.54
  4. Step 4: Simplify right side
    12,020.55x = 58,700,365.02
  5. Step 5: Solve for x
    x = 58,700,365.02/12,020.55
  6. Step 6: Final answer
    x = 4,883.33

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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.