Home / 21,429.96-32,150.07-8,943.04

Finding the Fourth Proportional to 21,429.96, 32,150.07 and 8,943.04

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Solution

The fourth proportional to 21,429.96, 32,150.07 and 8,943.04 is: 13,416.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,429.96 : 32,150.07 = 8,943.04 : x
  2. Step 2: Convert to fraction form
    21,429.96/32,150.07 = 8,943.04/x
  3. Step 3: Cross multiply
    21,429.96x = 32,150.07 × 8,943.04
  4. Step 4: Simplify right side
    21,429.96x = 287,519,201.26
  5. Step 5: Solve for x
    x = 287,519,201.26/21,429.96
  6. Step 6: Final answer
    x = 13,416.69

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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.