Home / 21,162.26-31,749.98-8,683.30

Finding the Fourth Proportional to 21,162.26, 31,749.98 and 8,683.30

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Solution

The fourth proportional to 21,162.26, 31,749.98 and 8,683.30 is: 13,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.26 : 31,749.98 = 8,683.30 : x
  2. Step 2: Convert to fraction form
    21,162.26/31,749.98 = 8,683.30/x
  3. Step 3: Cross multiply
    21,162.26x = 31,749.98 × 8,683.30
  4. Step 4: Simplify right side
    21,162.26x = 275,694,597.60
  5. Step 5: Solve for x
    x = 275,694,597.60/21,162.26
  6. Step 6: Final answer
    x = 13,027.65

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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.