Home / 20,256.44-30,385.60-6,215.44

Finding the Fourth Proportional to 20,256.44, 30,385.60 and 6,215.44

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Solution

The fourth proportional to 20,256.44, 30,385.60 and 6,215.44 is: 9,323.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.44 : 30,385.60 = 6,215.44 : x
  2. Step 2: Convert to fraction form
    20,256.44/30,385.60 = 6,215.44/x
  3. Step 3: Cross multiply
    20,256.44x = 30,385.60 × 6,215.44
  4. Step 4: Simplify right side
    20,256.44x = 188,859,873.66
  5. Step 5: Solve for x
    x = 188,859,873.66/20,256.44
  6. Step 6: Final answer
    x = 9,323.45

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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.