Home / 19,771.57-27,282.08-11,812.11

Finding the Fourth Proportional to 19,771.57, 27,282.08 and 11,812.11

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Solution

The fourth proportional to 19,771.57, 27,282.08 and 11,812.11 is: 16,299.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.57 : 27,282.08 = 11,812.11 : x
  2. Step 2: Convert to fraction form
    19,771.57/27,282.08 = 11,812.11/x
  3. Step 3: Cross multiply
    19,771.57x = 27,282.08 × 11,812.11
  4. Step 4: Simplify right side
    19,771.57x = 322,258,929.99
  5. Step 5: Solve for x
    x = 322,258,929.99/19,771.57
  6. Step 6: Final answer
    x = 16,299.11

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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.