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Finding the Fourth Proportional to 30,351.88, 45,551.22 and 19,819.04

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Solution

The fourth proportional to 30,351.88, 45,551.22 and 19,819.04 is: 29,743.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,351.88 : 45,551.22 = 19,819.04 : x
  2. Step 2: Convert to fraction form
    30,351.88/45,551.22 = 19,819.04/x
  3. Step 3: Cross multiply
    30,351.88x = 45,551.22 × 19,819.04
  4. Step 4: Simplify right side
    30,351.88x = 902,781,451.23
  5. Step 5: Solve for x
    x = 902,781,451.23/30,351.88
  6. Step 6: Final answer
    x = 29,743.84

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1.5x scale

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.