Finding the Fourth Proportional to 22,375.93, 30,878.90 and 12,305.02
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Solution
The fourth proportional to 22,375.93, 30,878.90 and 12,305.02 is: 16,980.99
Step by Step Solution
- Step 1: Write the proportion equation
22,375.93 : 30,878.90 = 12,305.02 : x - Step 2: Convert to fraction form
22,375.93/30,878.90 = 12,305.02/x - Step 3: Cross multiply
22,375.93x = 30,878.90 × 12,305.02 - Step 4: Simplify right side
22,375.93x = 379,965,435.64 - Step 5: Solve for x
x = 379,965,435.64/22,375.93 - Step 6: Final answer
x = 16,980.99
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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.