Home / 18,664.24-27,999.60-18,644.80

Finding the Fourth Proportional to 18,664.24, 27,999.60 and 18,644.80

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Solution

The fourth proportional to 18,664.24, 27,999.60 and 18,644.80 is: 27,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.24 : 27,999.60 = 18,644.80 : x
  2. Step 2: Convert to fraction form
    18,664.24/27,999.60 = 18,644.80/x
  3. Step 3: Cross multiply
    18,664.24x = 27,999.60 × 18,644.80
  4. Step 4: Simplify right side
    18,664.24x = 522,046,942.08
  5. Step 5: Solve for x
    x = 522,046,942.08/18,664.24
  6. Step 6: Final answer
    x = 27,970.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.