Home / 22,118.56-33,137.52-18,835.36

Finding the Fourth Proportional to 22,118.56, 33,137.52 and 18,835.36

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Solution

The fourth proportional to 22,118.56, 33,137.52 and 18,835.36 is: 28,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,118.56 : 33,137.52 = 18,835.36 : x
  2. Step 2: Convert to fraction form
    22,118.56/33,137.52 = 18,835.36/x
  3. Step 3: Cross multiply
    22,118.56x = 33,137.52 × 18,835.36
  4. Step 4: Simplify right side
    22,118.56x = 624,157,118.71
  5. Step 5: Solve for x
    x = 624,157,118.71/22,118.56
  6. Step 6: Final answer
    x = 28,218.70

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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.