Home / 35,242.85-48,634.67-20,135.39

Finding the Fourth Proportional to 35,242.85, 48,634.67 and 20,135.39

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Solution

The fourth proportional to 35,242.85, 48,634.67 and 20,135.39 is: 27,786.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,242.85 : 48,634.67 = 20,135.39 : x
  2. Step 2: Convert to fraction form
    35,242.85/48,634.67 = 20,135.39/x
  3. Step 3: Cross multiply
    35,242.85x = 48,634.67 × 20,135.39
  4. Step 4: Simplify right side
    35,242.85x = 979,278,037.52
  5. Step 5: Solve for x
    x = 979,278,037.52/35,242.85
  6. Step 6: Final answer
    x = 27,786.58

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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.