Home / 18,132.72-27,145.62-17,685.60

Finding the Fourth Proportional to 18,132.72, 27,145.62 and 17,685.60

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Solution

The fourth proportional to 18,132.72, 27,145.62 and 17,685.60 is: 26,476.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.72 : 27,145.62 = 17,685.60 : x
  2. Step 2: Convert to fraction form
    18,132.72/27,145.62 = 17,685.60/x
  3. Step 3: Cross multiply
    18,132.72x = 27,145.62 × 17,685.60
  4. Step 4: Simplify right side
    18,132.72x = 480,086,577.07
  5. Step 5: Solve for x
    x = 480,086,577.07/18,132.72
  6. Step 6: Final answer
    x = 26,476.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.