Home / 21,968.50-32,953.31-7,929.73

Finding the Fourth Proportional to 21,968.50, 32,953.31 and 7,929.73

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Solution

The fourth proportional to 21,968.50, 32,953.31 and 7,929.73 is: 11,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.50 : 32,953.31 = 7,929.73 : x
  2. Step 2: Convert to fraction form
    21,968.50/32,953.31 = 7,929.73/x
  3. Step 3: Cross multiply
    21,968.50x = 32,953.31 × 7,929.73
  4. Step 4: Simplify right side
    21,968.50x = 261,310,811.26
  5. Step 5: Solve for x
    x = 261,310,811.26/21,968.50
  6. Step 6: Final answer
    x = 11,894.80

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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.