Home / 43,587.78-65,371.94-20,211.18

Finding the Fourth Proportional to 43,587.78, 65,371.94 and 20,211.18

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Solution

The fourth proportional to 43,587.78, 65,371.94 and 20,211.18 is: 30,312.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,587.78 : 65,371.94 = 20,211.18 : x
  2. Step 2: Convert to fraction form
    43,587.78/65,371.94 = 20,211.18/x
  3. Step 3: Cross multiply
    43,587.78x = 65,371.94 × 20,211.18
  4. Step 4: Simplify right side
    43,587.78x = 1,321,244,046.29
  5. Step 5: Solve for x
    x = 1,321,244,046.29/43,587.78
  6. Step 6: Final answer
    x = 30,312.26

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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.