Home / 21,812.72-30,092.58-13,852.04

Finding the Fourth Proportional to 21,812.72, 30,092.58 and 13,852.04

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Solution

The fourth proportional to 21,812.72, 30,092.58 and 13,852.04 is: 19,110.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,812.72 : 30,092.58 = 13,852.04 : x
  2. Step 2: Convert to fraction form
    21,812.72/30,092.58 = 13,852.04/x
  3. Step 3: Cross multiply
    21,812.72x = 30,092.58 × 13,852.04
  4. Step 4: Simplify right side
    21,812.72x = 416,843,471.40
  5. Step 5: Solve for x
    x = 416,843,471.40/21,812.72
  6. Step 6: Final answer
    x = 19,110.11

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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.