Finding the Fourth Proportional to 22,309.56, 33,418.78 and 12,454.09
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Solution
The fourth proportional to 22,309.56, 33,418.78 and 12,454.09 is: 18,655.70
Step by Step Solution
- Step 1: Write the proportion equation
22,309.56 : 33,418.78 = 12,454.09 : x - Step 2: Convert to fraction form
22,309.56/33,418.78 = 12,454.09/x - Step 3: Cross multiply
22,309.56x = 33,418.78 × 12,454.09 - Step 4: Simplify right side
22,309.56x = 416,200,379.13 - Step 5: Solve for x
x = 416,200,379.13/22,309.56 - Step 6: Final answer
x = 18,655.70
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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.