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Finding the Fourth Proportional to 22,440.84, 30,968.28 and 13,014.78

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Solution

The fourth proportional to 22,440.84, 30,968.28 and 13,014.78 is: 17,960.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,440.84 : 30,968.28 = 13,014.78 : x
  2. Step 2: Convert to fraction form
    22,440.84/30,968.28 = 13,014.78/x
  3. Step 3: Cross multiply
    22,440.84x = 30,968.28 × 13,014.78
  4. Step 4: Simplify right side
    22,440.84x = 403,045,351.18
  5. Step 5: Solve for x
    x = 403,045,351.18/22,440.84
  6. Step 6: Final answer
    x = 17,960.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.