Home / 26,811.22-40,163.10-12,784.86

Finding the Fourth Proportional to 26,811.22, 40,163.10 and 12,784.86

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Solution

The fourth proportional to 26,811.22, 40,163.10 and 12,784.86 is: 19,151.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,811.22 : 40,163.10 = 12,784.86 : x
  2. Step 2: Convert to fraction form
    26,811.22/40,163.10 = 12,784.86/x
  3. Step 3: Cross multiply
    26,811.22x = 40,163.10 × 12,784.86
  4. Step 4: Simplify right side
    26,811.22x = 513,479,610.67
  5. Step 5: Solve for x
    x = 513,479,610.67/26,811.22
  6. Step 6: Final answer
    x = 19,151.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.