Home / 21,964.26-30,309.45-13,012.62

Finding the Fourth Proportional to 21,964.26, 30,309.45 and 13,012.62

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Solution

The fourth proportional to 21,964.26, 30,309.45 and 13,012.62 is: 17,956.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.26 : 30,309.45 = 13,012.62 : x
  2. Step 2: Convert to fraction form
    21,964.26/30,309.45 = 13,012.62/x
  3. Step 3: Cross multiply
    21,964.26x = 30,309.45 × 13,012.62
  4. Step 4: Simplify right side
    21,964.26x = 394,405,355.26
  5. Step 5: Solve for x
    x = 394,405,355.26/21,964.26
  6. Step 6: Final answer
    x = 17,956.69

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1.5x scale

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.