Home / 21,336.38-31,996.01-8,847.92

Finding the Fourth Proportional to 21,336.38, 31,996.01 and 8,847.92

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Solution

The fourth proportional to 21,336.38, 31,996.01 and 8,847.92 is: 13,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.38 : 31,996.01 = 8,847.92 : x
  2. Step 2: Convert to fraction form
    21,336.38/31,996.01 = 8,847.92/x
  3. Step 3: Cross multiply
    21,336.38x = 31,996.01 × 8,847.92
  4. Step 4: Simplify right side
    21,336.38x = 283,097,932.58
  5. Step 5: Solve for x
    x = 283,097,932.58/21,336.38
  6. Step 6: Final answer
    x = 13,268.32

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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.