Home / 20,568.96-28,383.56-11,617.36

Finding the Fourth Proportional to 20,568.96, 28,383.56 and 11,617.36

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Solution

The fourth proportional to 20,568.96, 28,383.56 and 11,617.36 is: 16,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.96 : 28,383.56 = 11,617.36 : x
  2. Step 2: Convert to fraction form
    20,568.96/28,383.56 = 11,617.36/x
  3. Step 3: Cross multiply
    20,568.96x = 28,383.56 × 11,617.36
  4. Step 4: Simplify right side
    20,568.96x = 329,742,034.60
  5. Step 5: Solve for x
    x = 329,742,034.60/20,568.96
  6. Step 6: Final answer
    x = 16,031.05

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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.