Home / 20,087.64-30,120.42-15,954.12

Finding the Fourth Proportional to 20,087.64, 30,120.42 and 15,954.12

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Solution

The fourth proportional to 20,087.64, 30,120.42 and 15,954.12 is: 23,922.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.64 : 30,120.42 = 15,954.12 : x
  2. Step 2: Convert to fraction form
    20,087.64/30,120.42 = 15,954.12/x
  3. Step 3: Cross multiply
    20,087.64x = 30,120.42 × 15,954.12
  4. Step 4: Simplify right side
    20,087.64x = 480,544,795.13
  5. Step 5: Solve for x
    x = 480,544,795.13/20,087.64
  6. Step 6: Final answer
    x = 23,922.41

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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.