Home / 21,956.75-30,292.04-14,407.25

Finding the Fourth Proportional to 21,956.75, 30,292.04 and 14,407.25

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Solution

The fourth proportional to 21,956.75, 30,292.04 and 14,407.25 is: 19,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.75 : 30,292.04 = 14,407.25 : x
  2. Step 2: Convert to fraction form
    21,956.75/30,292.04 = 14,407.25/x
  3. Step 3: Cross multiply
    21,956.75x = 30,292.04 × 14,407.25
  4. Step 4: Simplify right side
    21,956.75x = 436,424,993.29
  5. Step 5: Solve for x
    x = 436,424,993.29/21,956.75
  6. Step 6: Final answer
    x = 19,876.58

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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.