Home / 33,138.12-49,708.02-9,765.36

Finding the Fourth Proportional to 33,138.12, 49,708.02 and 9,765.36

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Solution

The fourth proportional to 33,138.12, 49,708.02 and 9,765.36 is: 14,648.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,138.12 : 49,708.02 = 9,765.36 : x
  2. Step 2: Convert to fraction form
    33,138.12/49,708.02 = 9,765.36/x
  3. Step 3: Cross multiply
    33,138.12x = 49,708.02 × 9,765.36
  4. Step 4: Simplify right side
    33,138.12x = 485,416,710.19
  5. Step 5: Solve for x
    x = 485,416,710.19/33,138.12
  6. Step 6: Final answer
    x = 14,648.29

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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.