Home / 18,144.68-25,021.24-17,086.40

Finding the Fourth Proportional to 18,144.68, 25,021.24 and 17,086.40

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Solution

The fourth proportional to 18,144.68, 25,021.24 and 17,086.40 is: 23,561.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.68 : 25,021.24 = 17,086.40 : x
  2. Step 2: Convert to fraction form
    18,144.68/25,021.24 = 17,086.40/x
  3. Step 3: Cross multiply
    18,144.68x = 25,021.24 × 17,086.40
  4. Step 4: Simplify right side
    18,144.68x = 427,522,915.14
  5. Step 5: Solve for x
    x = 427,522,915.14/18,144.68
  6. Step 6: Final answer
    x = 23,561.89

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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.