Home / 22,799.21-31,447.54-19,809.90

Finding the Fourth Proportional to 22,799.21, 31,447.54 and 19,809.90

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Solution

The fourth proportional to 22,799.21, 31,447.54 and 19,809.90 is: 27,324.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,799.21 : 31,447.54 = 19,809.90 : x
  2. Step 2: Convert to fraction form
    22,799.21/31,447.54 = 19,809.90/x
  3. Step 3: Cross multiply
    22,799.21x = 31,447.54 × 19,809.90
  4. Step 4: Simplify right side
    22,799.21x = 622,972,647.41
  5. Step 5: Solve for x
    x = 622,972,647.41/22,799.21
  6. Step 6: Final answer
    x = 27,324.31

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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.