Home / 21,895.22-30,183.91-15,596.66

Finding the Fourth Proportional to 21,895.22, 30,183.91 and 15,596.66

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Solution

The fourth proportional to 21,895.22, 30,183.91 and 15,596.66 is: 21,500.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.22 : 30,183.91 = 15,596.66 : x
  2. Step 2: Convert to fraction form
    21,895.22/30,183.91 = 15,596.66/x
  3. Step 3: Cross multiply
    21,895.22x = 30,183.91 × 15,596.66
  4. Step 4: Simplify right side
    21,895.22x = 470,768,181.74
  5. Step 5: Solve for x
    x = 470,768,181.74/21,895.22
  6. Step 6: Final answer
    x = 21,500.96

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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.