Home / 21,508.44-29,674.38-13,964.22

Finding the Fourth Proportional to 21,508.44, 29,674.38 and 13,964.22

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Solution

The fourth proportional to 21,508.44, 29,674.38 and 13,964.22 is: 19,265.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,508.44 : 29,674.38 = 13,964.22 : x
  2. Step 2: Convert to fraction form
    21,508.44/29,674.38 = 13,964.22/x
  3. Step 3: Cross multiply
    21,508.44x = 29,674.38 × 13,964.22
  4. Step 4: Simplify right side
    21,508.44x = 414,379,570.68
  5. Step 5: Solve for x
    x = 414,379,570.68/21,508.44
  6. Step 6: Final answer
    x = 19,265.91

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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.