Home / 33,780.75-46,628.37-21,205.50

Finding the Fourth Proportional to 33,780.75, 46,628.37 and 21,205.50

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Solution

The fourth proportional to 33,780.75, 46,628.37 and 21,205.50 is: 29,270.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,780.75 : 46,628.37 = 21,205.50 : x
  2. Step 2: Convert to fraction form
    33,780.75/46,628.37 = 21,205.50/x
  3. Step 3: Cross multiply
    33,780.75x = 46,628.37 × 21,205.50
  4. Step 4: Simplify right side
    33,780.75x = 988,777,900.04
  5. Step 5: Solve for x
    x = 988,777,900.04/33,780.75
  6. Step 6: Final answer
    x = 29,270.45

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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.