Home / 30,495.31-45,738.24-11,772.61

Finding the Fourth Proportional to 30,495.31, 45,738.24 and 11,772.61

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Solution

The fourth proportional to 30,495.31, 45,738.24 and 11,772.61 is: 17,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,495.31 : 45,738.24 = 11,772.61 : x
  2. Step 2: Convert to fraction form
    30,495.31/45,738.24 = 11,772.61/x
  3. Step 3: Cross multiply
    30,495.31x = 45,738.24 × 11,772.61
  4. Step 4: Simplify right side
    30,495.31x = 538,458,461.61
  5. Step 5: Solve for x
    x = 538,458,461.61/30,495.31
  6. Step 6: Final answer
    x = 17,657.09

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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.