Home / 12,020.16-18,030.66-3,255.30

Finding the Fourth Proportional to 12,020.16, 18,030.66 and 3,255.30

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Solution

The fourth proportional to 12,020.16, 18,030.66 and 3,255.30 is: 4,883.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.16 : 18,030.66 = 3,255.30 : x
  2. Step 2: Convert to fraction form
    12,020.16/18,030.66 = 3,255.30/x
  3. Step 3: Cross multiply
    12,020.16x = 18,030.66 × 3,255.30
  4. Step 4: Simplify right side
    12,020.16x = 58,695,207.50
  5. Step 5: Solve for x
    x = 58,695,207.50/12,020.16
  6. Step 6: Final answer
    x = 4,883.06

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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.