Finding the Fourth Proportional to 38,662.49, 57,984.64 and 21,802.75
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Solution
The fourth proportional to 38,662.49, 57,984.64 and 21,802.75 is: 32,698.99
Step by Step Solution
- Step 1: Write the proportion equation
38,662.49 : 57,984.64 = 21,802.75 : x - Step 2: Convert to fraction form
38,662.49/57,984.64 = 21,802.75/x - Step 3: Cross multiply
38,662.49x = 57,984.64 × 21,802.75 - Step 4: Simplify right side
38,662.49x = 1,264,224,410.29 - Step 5: Solve for x
x = 1,264,224,410.29/38,662.49 - Step 6: Final answer
x = 32,698.99
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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.