Home / 43,984.22-65,981.39-12,819.47

Finding the Fourth Proportional to 43,984.22, 65,981.39 and 12,819.47

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Solution

The fourth proportional to 43,984.22, 65,981.39 and 12,819.47 is: 19,230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,984.22 : 65,981.39 = 12,819.47 : x
  2. Step 2: Convert to fraction form
    43,984.22/65,981.39 = 12,819.47/x
  3. Step 3: Cross multiply
    43,984.22x = 65,981.39 × 12,819.47
  4. Step 4: Simplify right side
    43,984.22x = 845,846,055.66
  5. Step 5: Solve for x
    x = 845,846,055.66/43,984.22
  6. Step 6: Final answer
    x = 19,230.67

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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.