Home / 20,412.12-30,608.37-15,958.56

Finding the Fourth Proportional to 20,412.12, 30,608.37 and 15,958.56

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Solution

The fourth proportional to 20,412.12, 30,608.37 and 15,958.56 is: 23,930.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.12 : 30,608.37 = 15,958.56 : x
  2. Step 2: Convert to fraction form
    20,412.12/30,608.37 = 15,958.56/x
  3. Step 3: Cross multiply
    20,412.12x = 30,608.37 × 15,958.56
  4. Step 4: Simplify right side
    20,412.12x = 488,465,509.15
  5. Step 5: Solve for x
    x = 488,465,509.15/20,412.12
  6. Step 6: Final answer
    x = 23,930.17

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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.