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Finding the Fourth Proportional to 29,801.40, 41,112.90 and 18,467.88

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Solution

The fourth proportional to 29,801.40, 41,112.90 and 18,467.88 is: 25,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,801.40 : 41,112.90 = 18,467.88 : x
  2. Step 2: Convert to fraction form
    29,801.40/41,112.90 = 18,467.88/x
  3. Step 3: Cross multiply
    29,801.40x = 41,112.90 × 18,467.88
  4. Step 4: Simplify right side
    29,801.40x = 759,268,103.65
  5. Step 5: Solve for x
    x = 759,268,103.65/29,801.40
  6. Step 6: Final answer
    x = 25,477.60

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1.5x scale

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.