Home / 21,917.52-32,871.42-8,766.36

Finding the Fourth Proportional to 21,917.52, 32,871.42 and 8,766.36

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Solution

The fourth proportional to 21,917.52, 32,871.42 and 8,766.36 is: 13,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,917.52 : 32,871.42 = 8,766.36 : x
  2. Step 2: Convert to fraction form
    21,917.52/32,871.42 = 8,766.36/x
  3. Step 3: Cross multiply
    21,917.52x = 32,871.42 × 8,766.36
  4. Step 4: Simplify right side
    21,917.52x = 288,162,701.43
  5. Step 5: Solve for x
    x = 288,162,701.43/21,917.52
  6. Step 6: Final answer
    x = 13,147.60

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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.