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Finding the Fourth Proportional to 35,348.09, 48,780.48 and 20,240.99

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Solution

The fourth proportional to 35,348.09, 48,780.48 and 20,240.99 is: 27,932.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,348.09 : 48,780.48 = 20,240.99 : x
  2. Step 2: Convert to fraction form
    35,348.09/48,780.48 = 20,240.99/x
  3. Step 3: Cross multiply
    35,348.09x = 48,780.48 × 20,240.99
  4. Step 4: Simplify right side
    35,348.09x = 987,365,207.88
  5. Step 5: Solve for x
    x = 987,365,207.88/35,348.09
  6. Step 6: Final answer
    x = 27,932.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.