Home / 20,554.21-30,831.45-6,513.94

Finding the Fourth Proportional to 20,554.21, 30,831.45 and 6,513.94

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Solution

The fourth proportional to 20,554.21, 30,831.45 and 6,513.94 is: 9,770.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.21 : 30,831.45 = 6,513.94 : x
  2. Step 2: Convert to fraction form
    20,554.21/30,831.45 = 6,513.94/x
  3. Step 3: Cross multiply
    20,554.21x = 30,831.45 × 6,513.94
  4. Step 4: Simplify right side
    20,554.21x = 200,834,215.41
  5. Step 5: Solve for x
    x = 200,834,215.41/20,554.21
  6. Step 6: Final answer
    x = 9,770.95

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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.