Home / 21,722.25-32,583.57-11,869.80

Finding the Fourth Proportional to 21,722.25, 32,583.57 and 11,869.80

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Solution

The fourth proportional to 21,722.25, 32,583.57 and 11,869.80 is: 17,804.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,722.25 : 32,583.57 = 11,869.80 : x
  2. Step 2: Convert to fraction form
    21,722.25/32,583.57 = 11,869.80/x
  3. Step 3: Cross multiply
    21,722.25x = 32,583.57 × 11,869.80
  4. Step 4: Simplify right side
    21,722.25x = 386,760,459.19
  5. Step 5: Solve for x
    x = 386,760,459.19/21,722.25
  6. Step 6: Final answer
    x = 17,804.81

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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.