Home / 20,126.51-30,180.13-7,467.57

Finding the Fourth Proportional to 20,126.51, 30,180.13 and 7,467.57

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Solution

The fourth proportional to 20,126.51, 30,180.13 and 7,467.57 is: 11,197.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.51 : 30,180.13 = 7,467.57 : x
  2. Step 2: Convert to fraction form
    20,126.51/30,180.13 = 7,467.57/x
  3. Step 3: Cross multiply
    20,126.51x = 30,180.13 × 7,467.57
  4. Step 4: Simplify right side
    20,126.51x = 225,372,233.38
  5. Step 5: Solve for x
    x = 225,372,233.38/20,126.51
  6. Step 6: Final answer
    x = 11,197.78

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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.