Home / 20,327.52-28,048.77-11,831.04

Finding the Fourth Proportional to 20,327.52, 28,048.77 and 11,831.04

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Solution

The fourth proportional to 20,327.52, 28,048.77 and 11,831.04 is: 16,324.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.52 : 28,048.77 = 11,831.04 : x
  2. Step 2: Convert to fraction form
    20,327.52/28,048.77 = 11,831.04/x
  3. Step 3: Cross multiply
    20,327.52x = 28,048.77 × 11,831.04
  4. Step 4: Simplify right side
    20,327.52x = 331,846,119.82
  5. Step 5: Solve for x
    x = 331,846,119.82/20,327.52
  6. Step 6: Final answer
    x = 16,324.97

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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.