Home / 12,020.60-18,030.91-3,255.52

Finding the Fourth Proportional to 12,020.60, 18,030.91 and 3,255.52

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Solution

The fourth proportional to 12,020.60, 18,030.91 and 3,255.52 is: 4,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.60 : 18,030.91 = 3,255.52 : x
  2. Step 2: Convert to fraction form
    12,020.60/18,030.91 = 3,255.52/x
  3. Step 3: Cross multiply
    12,020.60x = 18,030.91 × 3,255.52
  4. Step 4: Simplify right side
    12,020.60x = 58,699,971.85
  5. Step 5: Solve for x
    x = 58,699,971.85/12,020.60
  6. Step 6: Final answer
    x = 4,883.28

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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.