Home / 21,628.89-29,848.91-12,197.25

Finding the Fourth Proportional to 21,628.89, 29,848.91 and 12,197.25

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Solution

The fourth proportional to 21,628.89, 29,848.91 and 12,197.25 is: 16,832.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,628.89 : 29,848.91 = 12,197.25 : x
  2. Step 2: Convert to fraction form
    21,628.89/29,848.91 = 12,197.25/x
  3. Step 3: Cross multiply
    21,628.89x = 29,848.91 × 12,197.25
  4. Step 4: Simplify right side
    21,628.89x = 364,074,556.51
  5. Step 5: Solve for x
    x = 364,074,556.51/21,628.89
  6. Step 6: Final answer
    x = 16,832.79

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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.