Home / 20,247.59-27,944.75-12,288.27

Finding the Fourth Proportional to 20,247.59, 27,944.75 and 12,288.27

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Solution

The fourth proportional to 20,247.59, 27,944.75 and 12,288.27 is: 16,959.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.59 : 27,944.75 = 12,288.27 : x
  2. Step 2: Convert to fraction form
    20,247.59/27,944.75 = 12,288.27/x
  3. Step 3: Cross multiply
    20,247.59x = 27,944.75 × 12,288.27
  4. Step 4: Simplify right side
    20,247.59x = 343,392,571.64
  5. Step 5: Solve for x
    x = 343,392,571.64/20,247.59
  6. Step 6: Final answer
    x = 16,959.68

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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.