Home / 19,789.36-27,280.44-15,065.44

Finding the Fourth Proportional to 19,789.36, 27,280.44 and 15,065.44

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Solution

The fourth proportional to 19,789.36, 27,280.44 and 15,065.44 is: 20,768.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.36 : 27,280.44 = 15,065.44 : x
  2. Step 2: Convert to fraction form
    19,789.36/27,280.44 = 15,065.44/x
  3. Step 3: Cross multiply
    19,789.36x = 27,280.44 × 15,065.44
  4. Step 4: Simplify right side
    19,789.36x = 410,991,831.99
  5. Step 5: Solve for x
    x = 410,991,831.99/19,789.36
  6. Step 6: Final answer
    x = 20,768.32

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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.