Home / 22,405.27-30,919.62-12,845.99

Finding the Fourth Proportional to 22,405.27, 30,919.62 and 12,845.99

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Solution

The fourth proportional to 22,405.27, 30,919.62 and 12,845.99 is: 17,727.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,405.27 : 30,919.62 = 12,845.99 : x
  2. Step 2: Convert to fraction form
    22,405.27/30,919.62 = 12,845.99/x
  3. Step 3: Cross multiply
    22,405.27x = 30,919.62 × 12,845.99
  4. Step 4: Simplify right side
    22,405.27x = 397,193,129.32
  5. Step 5: Solve for x
    x = 397,193,129.32/22,405.27
  6. Step 6: Final answer
    x = 17,727.67

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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.