Home / 18,388.44-25,399.28-15,993.68

Finding the Fourth Proportional to 18,388.44, 25,399.28 and 15,993.68

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Solution

The fourth proportional to 18,388.44, 25,399.28 and 15,993.68 is: 22,091.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.44 : 25,399.28 = 15,993.68 : x
  2. Step 2: Convert to fraction form
    18,388.44/25,399.28 = 15,993.68/x
  3. Step 3: Cross multiply
    18,388.44x = 25,399.28 × 15,993.68
  4. Step 4: Simplify right side
    18,388.44x = 406,227,956.55
  5. Step 5: Solve for x
    x = 406,227,956.55/18,388.44
  6. Step 6: Final answer
    x = 22,091.49

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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.