Home / 21,538.49-32,295.59-8,375.79

Finding the Fourth Proportional to 21,538.49, 32,295.59 and 8,375.79

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Solution

The fourth proportional to 21,538.49, 32,295.59 and 8,375.79 is: 12,558.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538.49 : 32,295.59 = 8,375.79 : x
  2. Step 2: Convert to fraction form
    21,538.49/32,295.59 = 8,375.79/x
  3. Step 3: Cross multiply
    21,538.49x = 32,295.59 × 8,375.79
  4. Step 4: Simplify right side
    21,538.49x = 270,501,069.30
  5. Step 5: Solve for x
    x = 270,501,069.30/21,538.49
  6. Step 6: Final answer
    x = 12,558.96

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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.