Home / 20,551.35-30,831.65-6,512.22

Finding the Fourth Proportional to 20,551.35, 30,831.65 and 6,512.22

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Solution

The fourth proportional to 20,551.35, 30,831.65 and 6,512.22 is: 9,769.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.35 : 30,831.65 = 6,512.22 : x
  2. Step 2: Convert to fraction form
    20,551.35/30,831.65 = 6,512.22/x
  3. Step 3: Cross multiply
    20,551.35x = 30,831.65 × 6,512.22
  4. Step 4: Simplify right side
    20,551.35x = 200,782,455.20
  5. Step 5: Solve for x
    x = 200,782,455.20/20,551.35
  6. Step 6: Final answer
    x = 9,769.79

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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.