Home / 19,912.04-27,479.54-12,360.80

Finding the Fourth Proportional to 19,912.04, 27,479.54 and 12,360.80

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Solution

The fourth proportional to 19,912.04, 27,479.54 and 12,360.80 is: 17,058.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.04 : 27,479.54 = 12,360.80 : x
  2. Step 2: Convert to fraction form
    19,912.04/27,479.54 = 12,360.80/x
  3. Step 3: Cross multiply
    19,912.04x = 27,479.54 × 12,360.80
  4. Step 4: Simplify right side
    19,912.04x = 339,669,098.03
  5. Step 5: Solve for x
    x = 339,669,098.03/19,912.04
  6. Step 6: Final answer
    x = 17,058.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.