Home / 21,467.44-29,626.08-13,405.87

Finding the Fourth Proportional to 21,467.44, 29,626.08 and 13,405.87

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Solution

The fourth proportional to 21,467.44, 29,626.08 and 13,405.87 is: 18,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,467.44 : 29,626.08 = 13,405.87 : x
  2. Step 2: Convert to fraction form
    21,467.44/29,626.08 = 13,405.87/x
  3. Step 3: Cross multiply
    21,467.44x = 29,626.08 × 13,405.87
  4. Step 4: Simplify right side
    21,467.44x = 397,163,377.09
  5. Step 5: Solve for x
    x = 397,163,377.09/21,467.44
  6. Step 6: Final answer
    x = 18,500.73

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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.