Home / 21,100.04-29,118.66-11,669.48

Finding the Fourth Proportional to 21,100.04, 29,118.66 and 11,669.48

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Solution

The fourth proportional to 21,100.04, 29,118.66 and 11,669.48 is: 16,104.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,100.04 : 29,118.66 = 11,669.48 : x
  2. Step 2: Convert to fraction form
    21,100.04/29,118.66 = 11,669.48/x
  3. Step 3: Cross multiply
    21,100.04x = 29,118.66 × 11,669.48
  4. Step 4: Simplify right side
    21,100.04x = 339,799,620.50
  5. Step 5: Solve for x
    x = 339,799,620.50/21,100.04
  6. Step 6: Final answer
    x = 16,104.22

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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.