Finding the Fourth Proportional to 19,875.48, 27,415.58 and 14,834.31
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Solution
The fourth proportional to 19,875.48, 27,415.58 and 14,834.31 is: 20,461.95
Step by Step Solution
- Step 1: Write the proportion equation
19,875.48 : 27,415.58 = 14,834.31 : x - Step 2: Convert to fraction form
19,875.48/27,415.58 = 14,834.31/x - Step 3: Cross multiply
19,875.48x = 27,415.58 × 14,834.31 - Step 4: Simplify right side
19,875.48x = 406,691,138.38 - Step 5: Solve for x
x = 406,691,138.38/19,875.48 - Step 6: Final answer
x = 20,461.95
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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.