Home / 21,429.72-32,144.58-11,034.36

Finding the Fourth Proportional to 21,429.72, 32,144.58 and 11,034.36

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Solution

The fourth proportional to 21,429.72, 32,144.58 and 11,034.36 is: 16,551.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,429.72 : 32,144.58 = 11,034.36 : x
  2. Step 2: Convert to fraction form
    21,429.72/32,144.58 = 11,034.36/x
  3. Step 3: Cross multiply
    21,429.72x = 32,144.58 × 11,034.36
  4. Step 4: Simplify right side
    21,429.72x = 354,694,867.77
  5. Step 5: Solve for x
    x = 354,694,867.77/21,429.72
  6. Step 6: Final answer
    x = 16,551.54

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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.