Home / 20,542.86-30,831.57-19,246.86

Finding the Fourth Proportional to 20,542.86, 30,831.57 and 19,246.86

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Solution

The fourth proportional to 20,542.86, 30,831.57 and 19,246.86 is: 28,886.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.86 : 30,831.57 = 19,246.86 : x
  2. Step 2: Convert to fraction form
    20,542.86/30,831.57 = 19,246.86/x
  3. Step 3: Cross multiply
    20,542.86x = 30,831.57 × 19,246.86
  4. Step 4: Simplify right side
    20,542.86x = 593,410,911.37
  5. Step 5: Solve for x
    x = 593,410,911.37/20,542.86
  6. Step 6: Final answer
    x = 28,886.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.