Home / 20,622.80-30,935.82-5,831.48

Finding the Fourth Proportional to 20,622.80, 30,935.82 and 5,831.48

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Solution

The fourth proportional to 20,622.80, 30,935.82 and 5,831.48 is: 8,747.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,622.80 : 30,935.82 = 5,831.48 : x
  2. Step 2: Convert to fraction form
    20,622.80/30,935.82 = 5,831.48/x
  3. Step 3: Cross multiply
    20,622.80x = 30,935.82 × 5,831.48
  4. Step 4: Simplify right side
    20,622.80x = 180,401,615.61
  5. Step 5: Solve for x
    x = 180,401,615.61/20,622.80
  6. Step 6: Final answer
    x = 8,747.68

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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.