Home / 19,872.13-27,450.09-13,923.49

Finding the Fourth Proportional to 19,872.13, 27,450.09 and 13,923.49

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Solution

The fourth proportional to 19,872.13, 27,450.09 and 13,923.49 is: 19,233.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.13 : 27,450.09 = 13,923.49 : x
  2. Step 2: Convert to fraction form
    19,872.13/27,450.09 = 13,923.49/x
  3. Step 3: Cross multiply
    19,872.13x = 27,450.09 × 13,923.49
  4. Step 4: Simplify right side
    19,872.13x = 382,201,053.61
  5. Step 5: Solve for x
    x = 382,201,053.61/19,872.13
  6. Step 6: Final answer
    x = 19,233.02

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1.5x scale

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.