Home / 22,165.40-30,584.66-13,212.68

Finding the Fourth Proportional to 22,165.40, 30,584.66 and 13,212.68

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Solution

The fourth proportional to 22,165.40, 30,584.66 and 13,212.68 is: 18,231.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,165.40 : 30,584.66 = 13,212.68 : x
  2. Step 2: Convert to fraction form
    22,165.40/30,584.66 = 13,212.68/x
  3. Step 3: Cross multiply
    22,165.40x = 30,584.66 × 13,212.68
  4. Step 4: Simplify right side
    22,165.40x = 404,105,325.49
  5. Step 5: Solve for x
    x = 404,105,325.49/22,165.40
  6. Step 6: Final answer
    x = 18,231.36

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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.