Home / 21,363.73-29,483.08-12,868.52

Finding the Fourth Proportional to 21,363.73, 29,483.08 and 12,868.52

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Solution

The fourth proportional to 21,363.73, 29,483.08 and 12,868.52 is: 17,759.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,363.73 : 29,483.08 = 12,868.52 : x
  2. Step 2: Convert to fraction form
    21,363.73/29,483.08 = 12,868.52/x
  3. Step 3: Cross multiply
    21,363.73x = 29,483.08 × 12,868.52
  4. Step 4: Simplify right side
    21,363.73x = 379,403,540.30
  5. Step 5: Solve for x
    x = 379,403,540.30/21,363.73
  6. Step 6: Final answer
    x = 17,759.24

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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.