Home / 21,786.48-32,672.57-6,991.88

Finding the Fourth Proportional to 21,786.48, 32,672.57 and 6,991.88

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Solution

The fourth proportional to 21,786.48, 32,672.57 and 6,991.88 is: 10,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,786.48 : 32,672.57 = 6,991.88 : x
  2. Step 2: Convert to fraction form
    21,786.48/32,672.57 = 6,991.88/x
  3. Step 3: Cross multiply
    21,786.48x = 32,672.57 × 6,991.88
  4. Step 4: Simplify right side
    21,786.48x = 228,442,490.41
  5. Step 5: Solve for x
    x = 228,442,490.41/21,786.48
  6. Step 6: Final answer
    x = 10,485.52

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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.