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Finding the Fourth Proportional to 29,999.72, 41,394.20 and 19,383.20

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Solution

The fourth proportional to 29,999.72, 41,394.20 and 19,383.20 is: 26,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,999.72 : 41,394.20 = 19,383.20 : x
  2. Step 2: Convert to fraction form
    29,999.72/41,394.20 = 19,383.20/x
  3. Step 3: Cross multiply
    29,999.72x = 41,394.20 × 19,383.20
  4. Step 4: Simplify right side
    29,999.72x = 802,351,857.04
  5. Step 5: Solve for x
    x = 802,351,857.04/29,999.72
  6. Step 6: Final answer
    x = 26,745.32

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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.