Home / 19,982.36-29,922.30-19,391.10

Finding the Fourth Proportional to 19,982.36, 29,922.30 and 19,391.10

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Solution

The fourth proportional to 19,982.36, 29,922.30 and 19,391.10 is: 29,036.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.36 : 29,922.30 = 19,391.10 : x
  2. Step 2: Convert to fraction form
    19,982.36/29,922.30 = 19,391.10/x
  3. Step 3: Cross multiply
    19,982.36x = 29,922.30 × 19,391.10
  4. Step 4: Simplify right side
    19,982.36x = 580,226,311.53
  5. Step 5: Solve for x
    x = 580,226,311.53/19,982.36
  6. Step 6: Final answer
    x = 29,036.93

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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.