Home / 19,828.85-27,366.10-11,871.07

Finding the Fourth Proportional to 19,828.85, 27,366.10 and 11,871.07

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Solution

The fourth proportional to 19,828.85, 27,366.10 and 11,871.07 is: 16,383.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.85 : 27,366.10 = 11,871.07 : x
  2. Step 2: Convert to fraction form
    19,828.85/27,366.10 = 11,871.07/x
  3. Step 3: Cross multiply
    19,828.85x = 27,366.10 × 11,871.07
  4. Step 4: Simplify right side
    19,828.85x = 324,864,888.73
  5. Step 5: Solve for x
    x = 324,864,888.73/19,828.85
  6. Step 6: Final answer
    x = 16,383.45

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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.