Home / 29,035.69-40,086.43-18,289.78

Finding the Fourth Proportional to 29,035.69, 40,086.43 and 18,289.78

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Solution

The fourth proportional to 29,035.69, 40,086.43 and 18,289.78 is: 25,250.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,035.69 : 40,086.43 = 18,289.78 : x
  2. Step 2: Convert to fraction form
    29,035.69/40,086.43 = 18,289.78/x
  3. Step 3: Cross multiply
    29,035.69x = 40,086.43 × 18,289.78
  4. Step 4: Simplify right side
    29,035.69x = 733,171,785.25
  5. Step 5: Solve for x
    x = 733,171,785.25/29,035.69
  6. Step 6: Final answer
    x = 25,250.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.