Home / 30,494.31-45,736.74-11,771.61

Finding the Fourth Proportional to 30,494.31, 45,736.74 and 11,771.61

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Solution

The fourth proportional to 30,494.31, 45,736.74 and 11,771.61 is: 17,655.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,494.31 : 45,736.74 = 11,771.61 : x
  2. Step 2: Convert to fraction form
    30,494.31/45,736.74 = 11,771.61/x
  3. Step 3: Cross multiply
    30,494.31x = 45,736.74 × 11,771.61
  4. Step 4: Simplify right side
    30,494.31x = 538,395,065.95
  5. Step 5: Solve for x
    x = 538,395,065.95/30,494.31
  6. Step 6: Final answer
    x = 17,655.59

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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.