Home / 22,212.49-30,633.38-18,429.66

Finding the Fourth Proportional to 22,212.49, 30,633.38 and 18,429.66

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Solution

The fourth proportional to 22,212.49, 30,633.38 and 18,429.66 is: 25,416.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,212.49 : 30,633.38 = 18,429.66 : x
  2. Step 2: Convert to fraction form
    22,212.49/30,633.38 = 18,429.66/x
  3. Step 3: Cross multiply
    22,212.49x = 30,633.38 × 18,429.66
  4. Step 4: Simplify right side
    22,212.49x = 564,562,624.88
  5. Step 5: Solve for x
    x = 564,562,624.88/22,212.49
  6. Step 6: Final answer
    x = 25,416.45

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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.