Home / 19,948.70-29,922.94-5,156.36

Finding the Fourth Proportional to 19,948.70, 29,922.94 and 5,156.36

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Solution

The fourth proportional to 19,948.70, 29,922.94 and 5,156.36 is: 7,734.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,948.70 : 29,922.94 = 5,156.36 : x
  2. Step 2: Convert to fraction form
    19,948.70/29,922.94 = 5,156.36/x
  3. Step 3: Cross multiply
    19,948.70x = 29,922.94 × 5,156.36
  4. Step 4: Simplify right side
    19,948.70x = 154,293,450.90
  5. Step 5: Solve for x
    x = 154,293,450.90/19,948.70
  6. Step 6: Final answer
    x = 7,734.51

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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.