Home / 38,511.24-53,145.06-21,514.38

Finding the Fourth Proportional to 38,511.24, 53,145.06 and 21,514.38

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Solution

The fourth proportional to 38,511.24, 53,145.06 and 21,514.38 is: 29,689.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.24 : 53,145.06 = 21,514.38 : x
  2. Step 2: Convert to fraction form
    38,511.24/53,145.06 = 21,514.38/x
  3. Step 3: Cross multiply
    38,511.24x = 53,145.06 × 21,514.38
  4. Step 4: Simplify right side
    38,511.24x = 1,143,383,015.96
  5. Step 5: Solve for x
    x = 1,143,383,015.96/38,511.24
  6. Step 6: Final answer
    x = 29,689.59

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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.