Home / 21,418.92-32,120.37-7,374.96

Finding the Fourth Proportional to 21,418.92, 32,120.37 and 7,374.96

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Solution

The fourth proportional to 21,418.92, 32,120.37 and 7,374.96 is: 11,059.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.92 : 32,120.37 = 7,374.96 : x
  2. Step 2: Convert to fraction form
    21,418.92/32,120.37 = 7,374.96/x
  3. Step 3: Cross multiply
    21,418.92x = 32,120.37 × 7,374.96
  4. Step 4: Simplify right side
    21,418.92x = 236,886,443.94
  5. Step 5: Solve for x
    x = 236,886,443.94/21,418.92
  6. Step 6: Final answer
    x = 11,059.68

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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.