Home / 33,150.87-45,735.64-21,212.28

Finding the Fourth Proportional to 33,150.87, 45,735.64 and 21,212.28

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Solution

The fourth proportional to 33,150.87, 45,735.64 and 21,212.28 is: 29,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,150.87 : 45,735.64 = 21,212.28 : x
  2. Step 2: Convert to fraction form
    33,150.87/45,735.64 = 21,212.28/x
  3. Step 3: Cross multiply
    33,150.87x = 45,735.64 × 21,212.28
  4. Step 4: Simplify right side
    33,150.87x = 970,157,148.63
  5. Step 5: Solve for x
    x = 970,157,148.63/33,150.87
  6. Step 6: Final answer
    x = 29,264.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.