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Finding the Fourth Proportional to 35,139.60, 52,716.60 and 11,782.80

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Solution

The fourth proportional to 35,139.60, 52,716.60 and 11,782.80 is: 17,676.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,139.60 : 52,716.60 = 11,782.80 : x
  2. Step 2: Convert to fraction form
    35,139.60/52,716.60 = 11,782.80/x
  3. Step 3: Cross multiply
    35,139.60x = 52,716.60 × 11,782.80
  4. Step 4: Simplify right side
    35,139.60x = 621,149,154.48
  5. Step 5: Solve for x
    x = 621,149,154.48/35,139.60
  6. Step 6: Final answer
    x = 17,676.61

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.