Home / 19,825.78-27,359.96-10,872.75

Finding the Fourth Proportional to 19,825.78, 27,359.96 and 10,872.75

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Solution

The fourth proportional to 19,825.78, 27,359.96 and 10,872.75 is: 15,004.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,825.78 : 27,359.96 = 10,872.75 : x
  2. Step 2: Convert to fraction form
    19,825.78/27,359.96 = 10,872.75/x
  3. Step 3: Cross multiply
    19,825.78x = 27,359.96 × 10,872.75
  4. Step 4: Simplify right side
    19,825.78x = 297,478,005.09
  5. Step 5: Solve for x
    x = 297,478,005.09/19,825.78
  6. Step 6: Final answer
    x = 15,004.61

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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.