Home / 21,739.65-30,003.53-12,183.23

Finding the Fourth Proportional to 21,739.65, 30,003.53 and 12,183.23

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Solution

The fourth proportional to 21,739.65, 30,003.53 and 12,183.23 is: 16,814.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.65 : 30,003.53 = 12,183.23 : x
  2. Step 2: Convert to fraction form
    21,739.65/30,003.53 = 12,183.23/x
  3. Step 3: Cross multiply
    21,739.65x = 30,003.53 × 12,183.23
  4. Step 4: Simplify right side
    21,739.65x = 365,539,695.87
  5. Step 5: Solve for x
    x = 365,539,695.87/21,739.65
  6. Step 6: Final answer
    x = 16,814.42

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1.5x scale

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.