Home / 19,822.88-27,355.92-11,439.68

Finding the Fourth Proportional to 19,822.88, 27,355.92 and 11,439.68

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Solution

The fourth proportional to 19,822.88, 27,355.92 and 11,439.68 is: 15,786.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,822.88 : 27,355.92 = 11,439.68 : x
  2. Step 2: Convert to fraction form
    19,822.88/27,355.92 = 11,439.68/x
  3. Step 3: Cross multiply
    19,822.88x = 27,355.92 × 11,439.68
  4. Step 4: Simplify right side
    19,822.88x = 312,942,970.91
  5. Step 5: Solve for x
    x = 312,942,970.91/19,822.88
  6. Step 6: Final answer
    x = 15,786.96

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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.