Finding the Fourth Proportional to 21,203.13, 29,260.26 and 11,771.63
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Solution
The fourth proportional to 21,203.13, 29,260.26 and 11,771.63 is: 16,244.82
Step by Step Solution
- Step 1: Write the proportion equation
21,203.13 : 29,260.26 = 11,771.63 : x - Step 2: Convert to fraction form
21,203.13/29,260.26 = 11,771.63/x - Step 3: Cross multiply
21,203.13x = 29,260.26 × 11,771.63 - Step 4: Simplify right side
21,203.13x = 344,440,954.42 - Step 5: Solve for x
x = 344,440,954.42/21,203.13 - Step 6: Final answer
x = 16,244.82
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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.