Home / 19,822.89-27,355.56-11,439.39

Finding the Fourth Proportional to 19,822.89, 27,355.56 and 11,439.39

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Solution

The fourth proportional to 19,822.89, 27,355.56 and 11,439.39 is: 15,786.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,822.89 : 27,355.56 = 11,439.39 : x
  2. Step 2: Convert to fraction form
    19,822.89/27,355.56 = 11,439.39/x
  3. Step 3: Cross multiply
    19,822.89x = 27,355.56 × 11,439.39
  4. Step 4: Simplify right side
    19,822.89x = 312,930,919.51
  5. Step 5: Solve for x
    x = 312,930,919.51/19,822.89
  6. Step 6: Final answer
    x = 15,786.34

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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.