Home / 20,556.32-30,836.56-5,765.28

Finding the Fourth Proportional to 20,556.32, 30,836.56 and 5,765.28

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Solution

The fourth proportional to 20,556.32, 30,836.56 and 5,765.28 is: 8,648.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556.32 : 30,836.56 = 5,765.28 : x
  2. Step 2: Convert to fraction form
    20,556.32/30,836.56 = 5,765.28/x
  3. Step 3: Cross multiply
    20,556.32x = 30,836.56 × 5,765.28
  4. Step 4: Simplify right side
    20,556.32x = 177,781,402.64
  5. Step 5: Solve for x
    x = 177,781,402.64/20,556.32
  6. Step 6: Final answer
    x = 8,648.50

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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.