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Finding the Fourth Proportional to 17,388, 23,995.32 and 9,430.44

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Solution

The fourth proportional to 17,388, 23,995.32 and 9,430.44 is: 13,013.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,388 : 23,995.32 = 9,430.44 : x
  2. Step 2: Convert to fraction form
    17,388/23,995.32 = 9,430.44/x
  3. Step 3: Cross multiply
    17,388x = 23,995.32 × 9,430.44
  4. Step 4: Simplify right side
    17,388x = 226,286,425.54
  5. Step 5: Solve for x
    x = 226,286,425.54/17,388
  6. Step 6: Final answer
    x = 13,013.94

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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.