Home / 21,556.73-29,742.45-12,606.44

Finding the Fourth Proportional to 21,556.73, 29,742.45 and 12,606.44

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Solution

The fourth proportional to 21,556.73, 29,742.45 and 12,606.44 is: 17,393.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,556.73 : 29,742.45 = 12,606.44 : x
  2. Step 2: Convert to fraction form
    21,556.73/29,742.45 = 12,606.44/x
  3. Step 3: Cross multiply
    21,556.73x = 29,742.45 × 12,606.44
  4. Step 4: Simplify right side
    21,556.73x = 374,946,262.67
  5. Step 5: Solve for x
    x = 374,946,262.67/21,556.73
  6. Step 6: Final answer
    x = 17,393.47

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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.