Home / 21,346.49-29,458.61-11,786.35

Finding the Fourth Proportional to 21,346.49, 29,458.61 and 11,786.35

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Solution

The fourth proportional to 21,346.49, 29,458.61 and 11,786.35 is: 16,265.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346.49 : 29,458.61 = 11,786.35 : x
  2. Step 2: Convert to fraction form
    21,346.49/29,458.61 = 11,786.35/x
  3. Step 3: Cross multiply
    21,346.49x = 29,458.61 × 11,786.35
  4. Step 4: Simplify right side
    21,346.49x = 347,209,487.97
  5. Step 5: Solve for x
    x = 347,209,487.97/21,346.49
  6. Step 6: Final answer
    x = 16,265.41

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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.