Home / 19,410.18-29,121.42-6,929.91

Finding the Fourth Proportional to 19,410.18, 29,121.42 and 6,929.91

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Solution

The fourth proportional to 19,410.18, 29,121.42 and 6,929.91 is: 10,397.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.18 : 29,121.42 = 6,929.91 : x
  2. Step 2: Convert to fraction form
    19,410.18/29,121.42 = 6,929.91/x
  3. Step 3: Cross multiply
    19,410.18x = 29,121.42 × 6,929.91
  4. Step 4: Simplify right side
    19,410.18x = 201,808,819.67
  5. Step 5: Solve for x
    x = 201,808,819.67/19,410.18
  6. Step 6: Final answer
    x = 10,397.06

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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.