Home / 22,179.13-30,606.78-12,107.64

Finding the Fourth Proportional to 22,179.13, 30,606.78 and 12,107.64

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Solution

The fourth proportional to 22,179.13, 30,606.78 and 12,107.64 is: 16,708.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,179.13 : 30,606.78 = 12,107.64 : x
  2. Step 2: Convert to fraction form
    22,179.13/30,606.78 = 12,107.64/x
  3. Step 3: Cross multiply
    22,179.13x = 30,606.78 × 12,107.64
  4. Step 4: Simplify right side
    22,179.13x = 370,575,831.30
  5. Step 5: Solve for x
    x = 370,575,831.30/22,179.13
  6. Step 6: Final answer
    x = 16,708.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.