Home / 21,741.67-30,005.92-12,183.11

Finding the Fourth Proportional to 21,741.67, 30,005.92 and 12,183.11

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Solution

The fourth proportional to 21,741.67, 30,005.92 and 12,183.11 is: 16,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,741.67 : 30,005.92 = 12,183.11 : x
  2. Step 2: Convert to fraction form
    21,741.67/30,005.92 = 12,183.11/x
  3. Step 3: Cross multiply
    21,741.67x = 30,005.92 × 12,183.11
  4. Step 4: Simplify right side
    21,741.67x = 365,565,243.52
  5. Step 5: Solve for x
    x = 365,565,243.52/21,741.67
  6. Step 6: Final answer
    x = 16,814.04

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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.