Home / 21,847.50-30,149.64-12,416.04

Finding the Fourth Proportional to 21,847.50, 30,149.64 and 12,416.04

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Solution

The fourth proportional to 21,847.50, 30,149.64 and 12,416.04 is: 17,134.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,847.50 : 30,149.64 = 12,416.04 : x
  2. Step 2: Convert to fraction form
    21,847.50/30,149.64 = 12,416.04/x
  3. Step 3: Cross multiply
    21,847.50x = 30,149.64 × 12,416.04
  4. Step 4: Simplify right side
    21,847.50x = 374,339,136.23
  5. Step 5: Solve for x
    x = 374,339,136.23/21,847.50
  6. Step 6: Final answer
    x = 17,134.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.