Home / 22,729.18-31,358.14-13,163.84

Finding the Fourth Proportional to 22,729.18, 31,358.14 and 13,163.84

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Solution

The fourth proportional to 22,729.18, 31,358.14 and 13,163.84 is: 18,161.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,729.18 : 31,358.14 = 13,163.84 : x
  2. Step 2: Convert to fraction form
    22,729.18/31,358.14 = 13,163.84/x
  3. Step 3: Cross multiply
    22,729.18x = 31,358.14 × 13,163.84
  4. Step 4: Simplify right side
    22,729.18x = 412,793,537.66
  5. Step 5: Solve for x
    x = 412,793,537.66/22,729.18
  6. Step 6: Final answer
    x = 18,161.39

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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.