Home / 14,219.96-21,329.94-3,831.71

Finding the Fourth Proportional to 14,219.96, 21,329.94 and 3,831.71

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Solution

The fourth proportional to 14,219.96, 21,329.94 and 3,831.71 is: 5,747.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.96 : 21,329.94 = 3,831.71 : x
  2. Step 2: Convert to fraction form
    14,219.96/21,329.94 = 3,831.71/x
  3. Step 3: Cross multiply
    14,219.96x = 21,329.94 × 3,831.71
  4. Step 4: Simplify right side
    14,219.96x = 81,730,144.40
  5. Step 5: Solve for x
    x = 81,730,144.40/14,219.96
  6. Step 6: Final answer
    x = 5,747.57

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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.