Home / 19,974.80-29,933.40-8,872.40

Finding the Fourth Proportional to 19,974.80, 29,933.40 and 8,872.40

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Solution

The fourth proportional to 19,974.80, 29,933.40 and 8,872.40 is: 13,295.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,974.80 : 29,933.40 = 8,872.40 : x
  2. Step 2: Convert to fraction form
    19,974.80/29,933.40 = 8,872.40/x
  3. Step 3: Cross multiply
    19,974.80x = 29,933.40 × 8,872.40
  4. Step 4: Simplify right side
    19,974.80x = 265,581,098.16
  5. Step 5: Solve for x
    x = 265,581,098.16/19,974.80
  6. Step 6: Final answer
    x = 13,295.81

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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.