Finding the Fourth Proportional to 21,755.30, 32,616.99 and 6,955.70
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Solution
The fourth proportional to 21,755.30, 32,616.99 and 6,955.70 is: 10,428.45
Step by Step Solution
- Step 1: Write the proportion equation
21,755.30 : 32,616.99 = 6,955.70 : x - Step 2: Convert to fraction form
21,755.30/32,616.99 = 6,955.70/x - Step 3: Cross multiply
21,755.30x = 32,616.99 × 6,955.70 - Step 4: Simplify right side
21,755.30x = 226,873,997.34 - Step 5: Solve for x
x = 226,873,997.34/21,755.30 - Step 6: Final answer
x = 10,428.45
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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.