Home / 33,721.70-46,538.78-18,615.78

Finding the Fourth Proportional to 33,721.70, 46,538.78 and 18,615.78

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Solution

The fourth proportional to 33,721.70, 46,538.78 and 18,615.78 is: 25,691.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,721.70 : 46,538.78 = 18,615.78 : x
  2. Step 2: Convert to fraction form
    33,721.70/46,538.78 = 18,615.78/x
  3. Step 3: Cross multiply
    33,721.70x = 46,538.78 × 18,615.78
  4. Step 4: Simplify right side
    33,721.70x = 866,355,596.87
  5. Step 5: Solve for x
    x = 866,355,596.87/33,721.70
  6. Step 6: Final answer
    x = 25,691.34

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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.