Home / 21,956.03-30,299.36-13,007.96

Finding the Fourth Proportional to 21,956.03, 30,299.36 and 13,007.96

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Solution

The fourth proportional to 21,956.03, 30,299.36 and 13,007.96 is: 17,951.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.03 : 30,299.36 = 13,007.96 : x
  2. Step 2: Convert to fraction form
    21,956.03/30,299.36 = 13,007.96/x
  3. Step 3: Cross multiply
    21,956.03x = 30,299.36 × 13,007.96
  4. Step 4: Simplify right side
    21,956.03x = 394,132,862.91
  5. Step 5: Solve for x
    x = 394,132,862.91/21,956.03
  6. Step 6: Final answer
    x = 17,951.01

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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.