Home / 21,450.33-32,179.79-7,410.87

Finding the Fourth Proportional to 21,450.33, 32,179.79 and 7,410.87

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Solution

The fourth proportional to 21,450.33, 32,179.79 and 7,410.87 is: 11,117.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.33 : 32,179.79 = 7,410.87 : x
  2. Step 2: Convert to fraction form
    21,450.33/32,179.79 = 7,410.87/x
  3. Step 3: Cross multiply
    21,450.33x = 32,179.79 × 7,410.87
  4. Step 4: Simplify right side
    21,450.33x = 238,480,240.32
  5. Step 5: Solve for x
    x = 238,480,240.32/21,450.33
  6. Step 6: Final answer
    x = 11,117.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.