Home / 19,665.75-29,499.63-18,669.24

Finding the Fourth Proportional to 19,665.75, 29,499.63 and 18,669.24

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Solution

The fourth proportional to 19,665.75, 29,499.63 and 18,669.24 is: 28,004.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.75 : 29,499.63 = 18,669.24 : x
  2. Step 2: Convert to fraction form
    19,665.75/29,499.63 = 18,669.24/x
  3. Step 3: Cross multiply
    19,665.75x = 29,499.63 × 18,669.24
  4. Step 4: Simplify right side
    19,665.75x = 550,735,672.38
  5. Step 5: Solve for x
    x = 550,735,672.38/19,665.75
  6. Step 6: Final answer
    x = 28,004.81

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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.