Home / 33,688.40-50,556.90-18,881.60

Finding the Fourth Proportional to 33,688.40, 50,556.90 and 18,881.60

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Solution

The fourth proportional to 33,688.40, 50,556.90 and 18,881.60 is: 28,336.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,688.40 : 50,556.90 = 18,881.60 : x
  2. Step 2: Convert to fraction form
    33,688.40/50,556.90 = 18,881.60/x
  3. Step 3: Cross multiply
    33,688.40x = 50,556.90 × 18,881.60
  4. Step 4: Simplify right side
    33,688.40x = 954,595,163.04
  5. Step 5: Solve for x
    x = 954,595,163.04/33,688.40
  6. Step 6: Final answer
    x = 28,336.02

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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.