Home / 20,796.10-28,698.56-11,364.73

Finding the Fourth Proportional to 20,796.10, 28,698.56 and 11,364.73

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Solution

The fourth proportional to 20,796.10, 28,698.56 and 11,364.73 is: 15,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.10 : 28,698.56 = 11,364.73 : x
  2. Step 2: Convert to fraction form
    20,796.10/28,698.56 = 11,364.73/x
  3. Step 3: Cross multiply
    20,796.10x = 28,698.56 × 11,364.73
  4. Step 4: Simplify right side
    20,796.10x = 326,151,385.79
  5. Step 5: Solve for x
    x = 326,151,385.79/20,796.10
  6. Step 6: Final answer
    x = 15,683.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.