Home / 20,297.64-28,002-11,799.12

Finding the Fourth Proportional to 20,297.64, 28,002 and 11,799.12

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Solution

The fourth proportional to 20,297.64, 28,002 and 11,799.12 is: 16,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,297.64 : 28,002 = 11,799.12 : x
  2. Step 2: Convert to fraction form
    20,297.64/28,002 = 11,799.12/x
  3. Step 3: Cross multiply
    20,297.64x = 28,002 × 11,799.12
  4. Step 4: Simplify right side
    20,297.64x = 330,398,958.24
  5. Step 5: Solve for x
    x = 330,398,958.24/20,297.64
  6. Step 6: Final answer
    x = 16,277.70

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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.