Home / 27,872.10-38,425.52-19,900.48

Finding the Fourth Proportional to 27,872.10, 38,425.52 and 19,900.48

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Solution

The fourth proportional to 27,872.10, 38,425.52 and 19,900.48 is: 27,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,872.10 : 38,425.52 = 19,900.48 : x
  2. Step 2: Convert to fraction form
    27,872.10/38,425.52 = 19,900.48/x
  3. Step 3: Cross multiply
    27,872.10x = 38,425.52 × 19,900.48
  4. Step 4: Simplify right side
    27,872.10x = 764,686,292.25
  5. Step 5: Solve for x
    x = 764,686,292.25/27,872.10
  6. Step 6: Final answer
    x = 27,435.55

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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.