Home / 21,474.18-32,201.83-8,815.25

Finding the Fourth Proportional to 21,474.18, 32,201.83 and 8,815.25

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Solution

The fourth proportional to 21,474.18, 32,201.83 and 8,815.25 is: 13,218.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.18 : 32,201.83 = 8,815.25 : x
  2. Step 2: Convert to fraction form
    21,474.18/32,201.83 = 8,815.25/x
  3. Step 3: Cross multiply
    21,474.18x = 32,201.83 × 8,815.25
  4. Step 4: Simplify right side
    21,474.18x = 283,866,998.86
  5. Step 5: Solve for x
    x = 283,866,998.86/21,474.18
  6. Step 6: Final answer
    x = 13,218.99

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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.