Home / 30,203.82-45,305.46-21,282.48

Finding the Fourth Proportional to 30,203.82, 45,305.46 and 21,282.48

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Solution

The fourth proportional to 30,203.82, 45,305.46 and 21,282.48 is: 31,923.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,203.82 : 45,305.46 = 21,282.48 : x
  2. Step 2: Convert to fraction form
    30,203.82/45,305.46 = 21,282.48/x
  3. Step 3: Cross multiply
    30,203.82x = 45,305.46 × 21,282.48
  4. Step 4: Simplify right side
    30,203.82x = 964,212,546.34
  5. Step 5: Solve for x
    x = 964,212,546.34/30,203.82
  6. Step 6: Final answer
    x = 31,923.53

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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.