Finding the Fourth Proportional to 20,154, 27,808.08 and 11,656.08
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Solution
The fourth proportional to 20,154, 27,808.08 and 11,656.08 is: 16,082.82
Step by Step Solution
- Step 1: Write the proportion equation
20,154 : 27,808.08 = 11,656.08 : x - Step 2: Convert to fraction form
20,154/27,808.08 = 11,656.08/x - Step 3: Cross multiply
20,154x = 27,808.08 × 11,656.08 - Step 4: Simplify right side
20,154x = 324,133,205.13 - Step 5: Solve for x
x = 324,133,205.13/20,154 - Step 6: Final answer
x = 16,082.82
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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.