Home / 36,127.78-54,154.47-20,512.42

Finding the Fourth Proportional to 36,127.78, 54,154.47 and 20,512.42

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Solution

The fourth proportional to 36,127.78, 54,154.47 and 20,512.42 is: 30,747.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,127.78 : 54,154.47 = 20,512.42 : x
  2. Step 2: Convert to fraction form
    36,127.78/54,154.47 = 20,512.42/x
  3. Step 3: Cross multiply
    36,127.78x = 54,154.47 × 20,512.42
  4. Step 4: Simplify right side
    36,127.78x = 1,110,839,233.52
  5. Step 5: Solve for x
    x = 1,110,839,233.52/36,127.78
  6. Step 6: Final answer
    x = 30,747.51

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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.