Home / 33,121.48-45,706.74-18,217.48

Finding the Fourth Proportional to 33,121.48, 45,706.74 and 18,217.48

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Solution

The fourth proportional to 33,121.48, 45,706.74 and 18,217.48 is: 25,139.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,121.48 : 45,706.74 = 18,217.48 : x
  2. Step 2: Convert to fraction form
    33,121.48/45,706.74 = 18,217.48/x
  3. Step 3: Cross multiply
    33,121.48x = 45,706.74 × 18,217.48
  4. Step 4: Simplify right side
    33,121.48x = 832,661,621.82
  5. Step 5: Solve for x
    x = 832,661,621.82/33,121.48
  6. Step 6: Final answer
    x = 25,139.63

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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.