Home / 20,078.62-27,673.90-13,352.22

Finding the Fourth Proportional to 20,078.62, 27,673.90 and 13,352.22

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Solution

The fourth proportional to 20,078.62, 27,673.90 and 13,352.22 is: 18,403.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,078.62 : 27,673.90 = 13,352.22 : x
  2. Step 2: Convert to fraction form
    20,078.62/27,673.90 = 13,352.22/x
  3. Step 3: Cross multiply
    20,078.62x = 27,673.90 × 13,352.22
  4. Step 4: Simplify right side
    20,078.62x = 369,507,967.68
  5. Step 5: Solve for x
    x = 369,507,967.68/20,078.62
  6. Step 6: Final answer
    x = 18,403.06

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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.