Finding the Fourth Proportional to 35.58, 53.35 and 19.31
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Solution
The fourth proportional to 35.58, 53.35 and 19.31 is: 28.95
Step by Step Solution
- Step 1: Write the proportion equation
35.58 : 53.35 = 19.31 : x - Step 2: Convert to fraction form
35.58/53.35 = 19.31/x - Step 3: Cross multiply
35.58x = 53.35 × 19.31 - Step 4: Simplify right side
35.58x = 1,030.19 - Step 5: Solve for x
x = 1,030.19/35.58 - Step 6: Final answer
x = 28.95
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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.