Home / 22,186.25-30,615.63-12,112.64

Finding the Fourth Proportional to 22,186.25, 30,615.63 and 12,112.64

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Solution

The fourth proportional to 22,186.25, 30,615.63 and 12,112.64 is: 16,714.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,186.25 : 30,615.63 = 12,112.64 : x
  2. Step 2: Convert to fraction form
    22,186.25/30,615.63 = 12,112.64/x
  3. Step 3: Cross multiply
    22,186.25x = 30,615.63 × 12,112.64
  4. Step 4: Simplify right side
    22,186.25x = 370,835,951.49
  5. Step 5: Solve for x
    x = 370,835,951.49/22,186.25
  6. Step 6: Final answer
    x = 16,714.68

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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.