Home / 19,410.10-29,121.30-6,929.85

Finding the Fourth Proportional to 19,410.10, 29,121.30 and 6,929.85

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Solution

The fourth proportional to 19,410.10, 29,121.30 and 6,929.85 is: 10,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.10 : 29,121.30 = 6,929.85 : x
  2. Step 2: Convert to fraction form
    19,410.10/29,121.30 = 6,929.85/x
  3. Step 3: Cross multiply
    19,410.10x = 29,121.30 × 6,929.85
  4. Step 4: Simplify right side
    19,410.10x = 201,806,240.81
  5. Step 5: Solve for x
    x = 201,806,240.81/19,410.10
  6. Step 6: Final answer
    x = 10,396.97

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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.