Home / 21,181.17-29,228.38-11,619.52

Finding the Fourth Proportional to 21,181.17, 29,228.38 and 11,619.52

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Solution

The fourth proportional to 21,181.17, 29,228.38 and 11,619.52 is: 16,034.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,181.17 : 29,228.38 = 11,619.52 : x
  2. Step 2: Convert to fraction form
    21,181.17/29,228.38 = 11,619.52/x
  3. Step 3: Cross multiply
    21,181.17x = 29,228.38 × 11,619.52
  4. Step 4: Simplify right side
    21,181.17x = 339,619,745.98
  5. Step 5: Solve for x
    x = 339,619,745.98/21,181.17
  6. Step 6: Final answer
    x = 16,034.04

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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.