Home / 27,949.76-38,571.54-15,203.87

Finding the Fourth Proportional to 27,949.76, 38,571.54 and 15,203.87

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Solution

The fourth proportional to 27,949.76, 38,571.54 and 15,203.87 is: 20,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,949.76 : 38,571.54 = 15,203.87 : x
  2. Step 2: Convert to fraction form
    27,949.76/38,571.54 = 15,203.87/x
  3. Step 3: Cross multiply
    27,949.76x = 38,571.54 × 15,203.87
  4. Step 4: Simplify right side
    27,949.76x = 586,436,719.27
  5. Step 5: Solve for x
    x = 586,436,719.27/27,949.76
  6. Step 6: Final answer
    x = 20,981.81

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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.