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Finding the Fourth Proportional to 29,679, 44,522.88 and 8,619.20

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Solution

The fourth proportional to 29,679, 44,522.88 and 8,619.20 is: 12,930.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,679 : 44,522.88 = 8,619.20 : x
  2. Step 2: Convert to fraction form
    29,679/44,522.88 = 8,619.20/x
  3. Step 3: Cross multiply
    29,679x = 44,522.88 × 8,619.20
  4. Step 4: Simplify right side
    29,679x = 383,751,607.30
  5. Step 5: Solve for x
    x = 383,751,607.30/29,679
  6. Step 6: Final answer
    x = 12,930.07

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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.