Home / 33,991.70-46,915.22-21,719.22

Finding the Fourth Proportional to 33,991.70, 46,915.22 and 21,719.22

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Solution

The fourth proportional to 33,991.70, 46,915.22 and 21,719.22 is: 29,976.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,991.70 : 46,915.22 = 21,719.22 : x
  2. Step 2: Convert to fraction form
    33,991.70/46,915.22 = 21,719.22/x
  3. Step 3: Cross multiply
    33,991.70x = 46,915.22 × 21,719.22
  4. Step 4: Simplify right side
    33,991.70x = 1,018,961,984.53
  5. Step 5: Solve for x
    x = 1,018,961,984.53/33,991.70
  6. Step 6: Final answer
    x = 29,976.79

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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.