Home / 13,831.14-20,746.72-3,442.89

Finding the Fourth Proportional to 13,831.14, 20,746.72 and 3,442.89

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Solution

The fourth proportional to 13,831.14, 20,746.72 and 3,442.89 is: 5,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.14 : 20,746.72 = 3,442.89 : x
  2. Step 2: Convert to fraction form
    13,831.14/20,746.72 = 3,442.89/x
  3. Step 3: Cross multiply
    13,831.14x = 20,746.72 × 3,442.89
  4. Step 4: Simplify right side
    13,831.14x = 71,428,674.82
  5. Step 5: Solve for x
    x = 71,428,674.82/13,831.14
  6. Step 6: Final answer
    x = 5,164.34

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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.