Home / 21,389.44-32,062.62-8,916.37

Finding the Fourth Proportional to 21,389.44, 32,062.62 and 8,916.37

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Solution

The fourth proportional to 21,389.44, 32,062.62 and 8,916.37 is: 13,365.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389.44 : 32,062.62 = 8,916.37 : x
  2. Step 2: Convert to fraction form
    21,389.44/32,062.62 = 8,916.37/x
  3. Step 3: Cross multiply
    21,389.44x = 32,062.62 × 8,916.37
  4. Step 4: Simplify right side
    21,389.44x = 285,882,183.09
  5. Step 5: Solve for x
    x = 285,882,183.09/21,389.44
  6. Step 6: Final answer
    x = 13,365.58

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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.