Home / 21,606.75-29,817.32-11,670.75

Finding the Fourth Proportional to 21,606.75, 29,817.32 and 11,670.75

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Solution

The fourth proportional to 21,606.75, 29,817.32 and 11,670.75 is: 16,105.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.75 : 29,817.32 = 11,670.75 : x
  2. Step 2: Convert to fraction form
    21,606.75/29,817.32 = 11,670.75/x
  3. Step 3: Cross multiply
    21,606.75x = 29,817.32 × 11,670.75
  4. Step 4: Simplify right side
    21,606.75x = 347,990,429.04
  5. Step 5: Solve for x
    x = 347,990,429.04/21,606.75
  6. Step 6: Final answer
    x = 16,105.64

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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.