Home / 21,060.25-29,039.54-14,349.80

Finding the Fourth Proportional to 21,060.25, 29,039.54 and 14,349.80

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Solution

The fourth proportional to 21,060.25, 29,039.54 and 14,349.80 is: 19,786.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.25 : 29,039.54 = 14,349.80 : x
  2. Step 2: Convert to fraction form
    21,060.25/29,039.54 = 14,349.80/x
  3. Step 3: Cross multiply
    21,060.25x = 29,039.54 × 14,349.80
  4. Step 4: Simplify right side
    21,060.25x = 416,711,591.94
  5. Step 5: Solve for x
    x = 416,711,591.94/21,060.25
  6. Step 6: Final answer
    x = 19,786.64

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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.