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Finding the Fourth Proportional to 30,279.97, 45,419.97 and 14,481.27

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Solution

The fourth proportional to 30,279.97, 45,419.97 and 14,481.27 is: 21,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.97 : 45,419.97 = 14,481.27 : x
  2. Step 2: Convert to fraction form
    30,279.97/45,419.97 = 14,481.27/x
  3. Step 3: Cross multiply
    30,279.97x = 45,419.97 × 14,481.27
  4. Step 4: Simplify right side
    30,279.97x = 657,738,848.96
  5. Step 5: Solve for x
    x = 657,738,848.96/30,279.97
  6. Step 6: Final answer
    x = 21,721.91

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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.