Home / 22,278.14-30,743.81-12,207.21

Finding the Fourth Proportional to 22,278.14, 30,743.81 and 12,207.21

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Solution

The fourth proportional to 22,278.14, 30,743.81 and 12,207.21 is: 16,845.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.14 : 30,743.81 = 12,207.21 : x
  2. Step 2: Convert to fraction form
    22,278.14/30,743.81 = 12,207.21/x
  3. Step 3: Cross multiply
    22,278.14x = 30,743.81 × 12,207.21
  4. Step 4: Simplify right side
    22,278.14x = 375,296,144.87
  5. Step 5: Solve for x
    x = 375,296,144.87/22,278.14
  6. Step 6: Final answer
    x = 16,845.94

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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.