Home / 19,855.88-27,400.04-10,904.56

Finding the Fourth Proportional to 19,855.88, 27,400.04 and 10,904.56

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Solution

The fourth proportional to 19,855.88, 27,400.04 and 10,904.56 is: 15,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,855.88 : 27,400.04 = 10,904.56 : x
  2. Step 2: Convert to fraction form
    19,855.88/27,400.04 = 10,904.56/x
  3. Step 3: Cross multiply
    19,855.88x = 27,400.04 × 10,904.56
  4. Step 4: Simplify right side
    19,855.88x = 298,785,380.18
  5. Step 5: Solve for x
    x = 298,785,380.18/19,855.88
  6. Step 6: Final answer
    x = 15,047.70

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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.