Home / 27,540.78-38,009.46-16,362.78

Finding the Fourth Proportional to 27,540.78, 38,009.46 and 16,362.78

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Solution

The fourth proportional to 27,540.78, 38,009.46 and 16,362.78 is: 22,582.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,540.78 : 38,009.46 = 16,362.78 : x
  2. Step 2: Convert to fraction form
    27,540.78/38,009.46 = 16,362.78/x
  3. Step 3: Cross multiply
    27,540.78x = 38,009.46 × 16,362.78
  4. Step 4: Simplify right side
    27,540.78x = 621,940,431.90
  5. Step 5: Solve for x
    x = 621,940,431.90/27,540.78
  6. Step 6: Final answer
    x = 22,582.53

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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.