Finding the Fourth Proportional to 40,076, 55,307.44 and 22,412
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Solution
The fourth proportional to 40,076, 55,307.44 and 22,412 is: 30,929.99
Step by Step Solution
- Step 1: Write the proportion equation
40,076 : 55,307.44 = 22,412 : x - Step 2: Convert to fraction form
40,076/55,307.44 = 22,412/x - Step 3: Cross multiply
40,076x = 55,307.44 × 22,412 - Step 4: Simplify right side
40,076x = 1,239,550,345.28 - Step 5: Solve for x
x = 1,239,550,345.28/40,076 - Step 6: Final answer
x = 30,929.99
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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.