Home / 18,543.54-27,680.43-17,173.02

Finding the Fourth Proportional to 18,543.54, 27,680.43 and 17,173.02

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Solution

The fourth proportional to 18,543.54, 27,680.43 and 17,173.02 is: 25,634.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.54 : 27,680.43 = 17,173.02 : x
  2. Step 2: Convert to fraction form
    18,543.54/27,680.43 = 17,173.02/x
  3. Step 3: Cross multiply
    18,543.54x = 27,680.43 × 17,173.02
  4. Step 4: Simplify right side
    18,543.54x = 475,356,578.00
  5. Step 5: Solve for x
    x = 475,356,578.00/18,543.54
  6. Step 6: Final answer
    x = 25,634.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.