Home / 30,331.94-41,858.39-16,720.47

Finding the Fourth Proportional to 30,331.94, 41,858.39 and 16,720.47

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Solution

The fourth proportional to 30,331.94, 41,858.39 and 16,720.47 is: 23,074.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.94 : 41,858.39 = 16,720.47 : x
  2. Step 2: Convert to fraction form
    30,331.94/41,858.39 = 16,720.47/x
  3. Step 3: Cross multiply
    30,331.94x = 41,858.39 × 16,720.47
  4. Step 4: Simplify right side
    30,331.94x = 699,891,954.24
  5. Step 5: Solve for x
    x = 699,891,954.24/30,331.94
  6. Step 6: Final answer
    x = 23,074.42

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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.