Home / 21,581.90-32,376.93-8,433.44

Finding the Fourth Proportional to 21,581.90, 32,376.93 and 8,433.44

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Solution

The fourth proportional to 21,581.90, 32,376.93 and 8,433.44 is: 12,651.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581.90 : 32,376.93 = 8,433.44 : x
  2. Step 2: Convert to fraction form
    21,581.90/32,376.93 = 8,433.44/x
  3. Step 3: Cross multiply
    21,581.90x = 32,376.93 × 8,433.44
  4. Step 4: Simplify right side
    21,581.90x = 273,048,896.54
  5. Step 5: Solve for x
    x = 273,048,896.54/21,581.90
  6. Step 6: Final answer
    x = 12,651.75

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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.