Home / 19,808.45-27,344.39-13,863.45

Finding the Fourth Proportional to 19,808.45, 27,344.39 and 13,863.45

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Solution

The fourth proportional to 19,808.45, 27,344.39 and 13,863.45 is: 19,137.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,808.45 : 27,344.39 = 13,863.45 : x
  2. Step 2: Convert to fraction form
    19,808.45/27,344.39 = 13,863.45/x
  3. Step 3: Cross multiply
    19,808.45x = 27,344.39 × 13,863.45
  4. Step 4: Simplify right side
    19,808.45x = 379,087,616.77
  5. Step 5: Solve for x
    x = 379,087,616.77/19,808.45
  6. Step 6: Final answer
    x = 19,137.67

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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.