Finding the Fourth Proportional to 39,558.24, 54,590.76 and 21,653.46
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Solution
The fourth proportional to 39,558.24, 54,590.76 and 21,653.46 is: 29,881.99
Step by Step Solution
- Step 1: Write the proportion equation
39,558.24 : 54,590.76 = 21,653.46 : x - Step 2: Convert to fraction form
39,558.24/54,590.76 = 21,653.46/x - Step 3: Cross multiply
39,558.24x = 54,590.76 × 21,653.46 - Step 4: Simplify right side
39,558.24x = 1,182,078,838.03 - Step 5: Solve for x
x = 1,182,078,838.03/39,558.24 - Step 6: Final answer
x = 29,881.99
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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.