Home / 19,410.03-29,109.78-8,321.94

Finding the Fourth Proportional to 19,410.03, 29,109.78 and 8,321.94

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Solution

The fourth proportional to 19,410.03, 29,109.78 and 8,321.94 is: 12,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.03 : 29,109.78 = 8,321.94 : x
  2. Step 2: Convert to fraction form
    19,410.03/29,109.78 = 8,321.94/x
  3. Step 3: Cross multiply
    19,410.03x = 29,109.78 × 8,321.94
  4. Step 4: Simplify right side
    19,410.03x = 242,249,842.57
  5. Step 5: Solve for x
    x = 242,249,842.57/19,410.03
  6. Step 6: Final answer
    x = 12,480.65

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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.