Home / 21,583.56-32,396.25-13,279.75

Finding the Fourth Proportional to 21,583.56, 32,396.25 and 13,279.75

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Solution

The fourth proportional to 21,583.56, 32,396.25 and 13,279.75 is: 19,932.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583.56 : 32,396.25 = 13,279.75 : x
  2. Step 2: Convert to fraction form
    21,583.56/32,396.25 = 13,279.75/x
  3. Step 3: Cross multiply
    21,583.56x = 32,396.25 × 13,279.75
  4. Step 4: Simplify right side
    21,583.56x = 430,214,069.75
  5. Step 5: Solve for x
    x = 430,214,069.75/21,583.56
  6. Step 6: Final answer
    x = 19,932.49

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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.