Home / 21,552.44-29,739-13,599.04

Finding the Fourth Proportional to 21,552.44, 29,739 and 13,599.04

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Solution

The fourth proportional to 21,552.44, 29,739 and 13,599.04 is: 18,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,552.44 : 29,739 = 13,599.04 : x
  2. Step 2: Convert to fraction form
    21,552.44/29,739 = 13,599.04/x
  3. Step 3: Cross multiply
    21,552.44x = 29,739 × 13,599.04
  4. Step 4: Simplify right side
    21,552.44x = 404,421,850.56
  5. Step 5: Solve for x
    x = 404,421,850.56/21,552.44
  6. Step 6: Final answer
    x = 18,764.55

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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.