Home / 31,322.69-43,225.41-16,982.75

Finding the Fourth Proportional to 31,322.69, 43,225.41 and 16,982.75

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Solution

The fourth proportional to 31,322.69, 43,225.41 and 16,982.75 is: 23,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,322.69 : 43,225.41 = 16,982.75 : x
  2. Step 2: Convert to fraction form
    31,322.69/43,225.41 = 16,982.75/x
  3. Step 3: Cross multiply
    31,322.69x = 43,225.41 × 16,982.75
  4. Step 4: Simplify right side
    31,322.69x = 734,086,331.68
  5. Step 5: Solve for x
    x = 734,086,331.68/31,322.69
  6. Step 6: Final answer
    x = 23,436.25

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Half scale
Find fourth proportional to 62,645.38, 86,450.82 and 33,965.50
Double scale
Find fourth proportional to 31,323.69, 43,226.79 and 16,983.75
Similar ratio
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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.