Home / 22,122.43-30,534.47-13,631.82

Finding the Fourth Proportional to 22,122.43, 30,534.47 and 13,631.82

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Solution

The fourth proportional to 22,122.43, 30,534.47 and 13,631.82 is: 18,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.43 : 30,534.47 = 13,631.82 : x
  2. Step 2: Convert to fraction form
    22,122.43/30,534.47 = 13,631.82/x
  3. Step 3: Cross multiply
    22,122.43x = 30,534.47 × 13,631.82
  4. Step 4: Simplify right side
    22,122.43x = 416,240,398.84
  5. Step 5: Solve for x
    x = 416,240,398.84/22,122.43
  6. Step 6: Final answer
    x = 18,815.31

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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.