Home / 20,512.64-30,765.60-7,362.56

Finding the Fourth Proportional to 20,512.64, 30,765.60 and 7,362.56

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Solution

The fourth proportional to 20,512.64, 30,765.60 and 7,362.56 is: 11,042.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.64 : 30,765.60 = 7,362.56 : x
  2. Step 2: Convert to fraction form
    20,512.64/30,765.60 = 7,362.56/x
  3. Step 3: Cross multiply
    20,512.64x = 30,765.60 × 7,362.56
  4. Step 4: Simplify right side
    20,512.64x = 226,513,575.94
  5. Step 5: Solve for x
    x = 226,513,575.94/20,512.64
  6. Step 6: Final answer
    x = 11,042.63

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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.