Home / 43,819.71-65,738.41-13,838.63

Finding the Fourth Proportional to 43,819.71, 65,738.41 and 13,838.63

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Solution

The fourth proportional to 43,819.71, 65,738.41 and 13,838.63 is: 20,760.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,819.71 : 65,738.41 = 13,838.63 : x
  2. Step 2: Convert to fraction form
    43,819.71/65,738.41 = 13,838.63/x
  3. Step 3: Cross multiply
    43,819.71x = 65,738.41 × 13,838.63
  4. Step 4: Simplify right side
    43,819.71x = 909,729,627.93
  5. Step 5: Solve for x
    x = 909,729,627.93/43,819.71
  6. Step 6: Final answer
    x = 20,760.74

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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.