Home / 21,372.08-32,064.57-6,379.68

Finding the Fourth Proportional to 21,372.08, 32,064.57 and 6,379.68

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Solution

The fourth proportional to 21,372.08, 32,064.57 and 6,379.68 is: 9,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372.08 : 32,064.57 = 6,379.68 : x
  2. Step 2: Convert to fraction form
    21,372.08/32,064.57 = 6,379.68/x
  3. Step 3: Cross multiply
    21,372.08x = 32,064.57 × 6,379.68
  4. Step 4: Simplify right side
    21,372.08x = 204,561,816.18
  5. Step 5: Solve for x
    x = 204,561,816.18/21,372.08
  6. Step 6: Final answer
    x = 9,571.45

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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.