Home / 20,038.62-27,662.18-11,975.15

Finding the Fourth Proportional to 20,038.62, 27,662.18 and 11,975.15

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Solution

The fourth proportional to 20,038.62, 27,662.18 and 11,975.15 is: 16,531.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038.62 : 27,662.18 = 11,975.15 : x
  2. Step 2: Convert to fraction form
    20,038.62/27,662.18 = 11,975.15/x
  3. Step 3: Cross multiply
    20,038.62x = 27,662.18 × 11,975.15
  4. Step 4: Simplify right side
    20,038.62x = 331,258,556.64
  5. Step 5: Solve for x
    x = 331,258,556.64/20,038.62
  6. Step 6: Final answer
    x = 16,531.01

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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.