Home / 21,273.05-29,354.69-12,323.43

Finding the Fourth Proportional to 21,273.05, 29,354.69 and 12,323.43

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Solution

The fourth proportional to 21,273.05, 29,354.69 and 12,323.43 is: 17,005.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.05 : 29,354.69 = 12,323.43 : x
  2. Step 2: Convert to fraction form
    21,273.05/29,354.69 = 12,323.43/x
  3. Step 3: Cross multiply
    21,273.05x = 29,354.69 × 12,323.43
  4. Step 4: Simplify right side
    21,273.05x = 361,750,405.77
  5. Step 5: Solve for x
    x = 361,750,405.77/21,273.05
  6. Step 6: Final answer
    x = 17,005.11

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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.