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Finding the Fourth Proportional to 30,104.56, 45,168.72 and 21,795.04

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Solution

The fourth proportional to 30,104.56, 45,168.72 and 21,795.04 is: 32,701.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,104.56 : 45,168.72 = 21,795.04 : x
  2. Step 2: Convert to fraction form
    30,104.56/45,168.72 = 21,795.04/x
  3. Step 3: Cross multiply
    30,104.56x = 45,168.72 × 21,795.04
  4. Step 4: Simplify right side
    30,104.56x = 984,454,059.15
  5. Step 5: Solve for x
    x = 984,454,059.15/30,104.56
  6. Step 6: Final answer
    x = 32,701.16

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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.