Finding the Fourth Proportional to 43,515, 65,263.35 and 21,306
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Solution
The fourth proportional to 43,515, 65,263.35 and 21,306 is: 31,954.52
Step by Step Solution
- Step 1: Write the proportion equation
43,515 : 65,263.35 = 21,306 : x - Step 2: Convert to fraction form
43,515/65,263.35 = 21,306/x - Step 3: Cross multiply
43,515x = 65,263.35 × 21,306 - Step 4: Simplify right side
43,515x = 1,390,500,935.10 - Step 5: Solve for x
x = 1,390,500,935.10/43,515 - Step 6: Final answer
x = 31,954.52
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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.