Home / 40,243.26-60,319.71-18,906.42

Finding the Fourth Proportional to 40,243.26, 60,319.71 and 18,906.42

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Solution

The fourth proportional to 40,243.26, 60,319.71 and 18,906.42 is: 28,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,243.26 : 60,319.71 = 18,906.42 : x
  2. Step 2: Convert to fraction form
    40,243.26/60,319.71 = 18,906.42/x
  3. Step 3: Cross multiply
    40,243.26x = 60,319.71 × 18,906.42
  4. Step 4: Simplify right side
    40,243.26x = 1,140,429,771.54
  5. Step 5: Solve for x
    x = 1,140,429,771.54/40,243.26
  6. Step 6: Final answer
    x = 28,338.40

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1.5x scale

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.