Home / 21,083.69-29,094.54-13,020.95

Finding the Fourth Proportional to 21,083.69, 29,094.54 and 13,020.95

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Solution

The fourth proportional to 21,083.69, 29,094.54 and 13,020.95 is: 17,968.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.69 : 29,094.54 = 13,020.95 : x
  2. Step 2: Convert to fraction form
    21,083.69/29,094.54 = 13,020.95/x
  3. Step 3: Cross multiply
    21,083.69x = 29,094.54 × 13,020.95
  4. Step 4: Simplify right side
    21,083.69x = 378,838,590.80
  5. Step 5: Solve for x
    x = 378,838,590.80/21,083.69
  6. Step 6: Final answer
    x = 17,968.32

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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.