Home / 19,917.04-29,846.40-12,107.02

Finding the Fourth Proportional to 19,917.04, 29,846.40 and 12,107.02

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Solution

The fourth proportional to 19,917.04, 29,846.40 and 12,107.02 is: 18,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.04 : 29,846.40 = 12,107.02 : x
  2. Step 2: Convert to fraction form
    19,917.04/29,846.40 = 12,107.02/x
  3. Step 3: Cross multiply
    19,917.04x = 29,846.40 × 12,107.02
  4. Step 4: Simplify right side
    19,917.04x = 361,350,961.73
  5. Step 5: Solve for x
    x = 361,350,961.73/19,917.04
  6. Step 6: Final answer
    x = 18,142.80

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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.