Home / 20,258.10-27,943.77-13,452.43

Finding the Fourth Proportional to 20,258.10, 27,943.77 and 13,452.43

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Solution

The fourth proportional to 20,258.10, 27,943.77 and 13,452.43 is: 18,556.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258.10 : 27,943.77 = 13,452.43 : x
  2. Step 2: Convert to fraction form
    20,258.10/27,943.77 = 13,452.43/x
  3. Step 3: Cross multiply
    20,258.10x = 27,943.77 × 13,452.43
  4. Step 4: Simplify right side
    20,258.10x = 375,911,402.88
  5. Step 5: Solve for x
    x = 375,911,402.88/20,258.10
  6. Step 6: Final answer
    x = 18,556.11

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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.