Home / 30,627.43-45,879.63-13,964.54

Finding the Fourth Proportional to 30,627.43, 45,879.63 and 13,964.54

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Solution

The fourth proportional to 30,627.43, 45,879.63 and 13,964.54 is: 20,918.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,627.43 : 45,879.63 = 13,964.54 : x
  2. Step 2: Convert to fraction form
    30,627.43/45,879.63 = 13,964.54/x
  3. Step 3: Cross multiply
    30,627.43x = 45,879.63 × 13,964.54
  4. Step 4: Simplify right side
    30,627.43x = 640,687,928.32
  5. Step 5: Solve for x
    x = 640,687,928.32/30,627.43
  6. Step 6: Final answer
    x = 20,918.76

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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.