Home / 31,284.69-43,172.67-16,944.21

Finding the Fourth Proportional to 31,284.69, 43,172.67 and 16,944.21

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Solution

The fourth proportional to 31,284.69, 43,172.67 and 16,944.21 is: 23,382.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,284.69 : 43,172.67 = 16,944.21 : x
  2. Step 2: Convert to fraction form
    31,284.69/43,172.67 = 16,944.21/x
  3. Step 3: Cross multiply
    31,284.69x = 43,172.67 × 16,944.21
  4. Step 4: Simplify right side
    31,284.69x = 731,526,786.74
  5. Step 5: Solve for x
    x = 731,526,786.74/31,284.69
  6. Step 6: Final answer
    x = 23,382.90

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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.