Finding the Fourth Proportional to 21,750.47, 29,998.99 and 14,578.13
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Solution
The fourth proportional to 21,750.47, 29,998.99 and 14,578.13 is: 20,106.66
Step by Step Solution
- Step 1: Write the proportion equation
21,750.47 : 29,998.99 = 14,578.13 : x - Step 2: Convert to fraction form
21,750.47/29,998.99 = 14,578.13/x - Step 3: Cross multiply
21,750.47x = 29,998.99 × 14,578.13 - Step 4: Simplify right side
21,750.47x = 437,329,214.64 - Step 5: Solve for x
x = 437,329,214.64/21,750.47 - Step 6: Final answer
x = 20,106.66
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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.