Home / 20,399.14-30,598.71-12,996.16

Finding the Fourth Proportional to 20,399.14, 30,598.71 and 12,996.16

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Solution

The fourth proportional to 20,399.14, 30,598.71 and 12,996.16 is: 19,494.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,399.14 : 30,598.71 = 12,996.16 : x
  2. Step 2: Convert to fraction form
    20,399.14/30,598.71 = 12,996.16/x
  3. Step 3: Cross multiply
    20,399.14x = 30,598.71 × 12,996.16
  4. Step 4: Simplify right side
    20,399.14x = 397,665,730.95
  5. Step 5: Solve for x
    x = 397,665,730.95/20,399.14
  6. Step 6: Final answer
    x = 19,494.24

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.