Home / 20,447.78-30,632.58-17,137.22

Finding the Fourth Proportional to 20,447.78, 30,632.58 and 17,137.22

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Solution

The fourth proportional to 20,447.78, 30,632.58 and 17,137.22 is: 25,673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447.78 : 30,632.58 = 17,137.22 : x
  2. Step 2: Convert to fraction form
    20,447.78/30,632.58 = 17,137.22/x
  3. Step 3: Cross multiply
    20,447.78x = 30,632.58 × 17,137.22
  4. Step 4: Simplify right side
    20,447.78x = 524,957,109.46
  5. Step 5: Solve for x
    x = 524,957,109.46/20,447.78
  6. Step 6: Final answer
    x = 25,673.07

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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.