Finding the Fourth Proportional to 28,618.23, 42,875.86 and 26,930.09
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Solution
The fourth proportional to 28,618.23, 42,875.86 and 26,930.09 is: 40,346.69
Step by Step Solution
- Step 1: Write the proportion equation
28,618.23 : 42,875.86 = 26,930.09 : x - Step 2: Convert to fraction form
28,618.23/42,875.86 = 26,930.09/x - Step 3: Cross multiply
28,618.23x = 42,875.86 × 26,930.09 - Step 4: Simplify right side
28,618.23x = 1,154,650,768.63 - Step 5: Solve for x
x = 1,154,650,768.63/28,618.23 - Step 6: Final answer
x = 40,346.69
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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.