Home / 21,150.75-29,188.32-11,590.44

Finding the Fourth Proportional to 21,150.75, 29,188.32 and 11,590.44

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Solution

The fourth proportional to 21,150.75, 29,188.32 and 11,590.44 is: 15,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150.75 : 29,188.32 = 11,590.44 : x
  2. Step 2: Convert to fraction form
    21,150.75/29,188.32 = 11,590.44/x
  3. Step 3: Cross multiply
    21,150.75x = 29,188.32 × 11,590.44
  4. Step 4: Simplify right side
    21,150.75x = 338,305,471.66
  5. Step 5: Solve for x
    x = 338,305,471.66/21,150.75
  6. Step 6: Final answer
    x = 15,994.96

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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.