Home / 23,709.72-32,720.08-13,100.04

Finding the Fourth Proportional to 23,709.72, 32,720.08 and 13,100.04

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Solution

The fourth proportional to 23,709.72, 32,720.08 and 13,100.04 is: 18,078.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,709.72 : 32,720.08 = 13,100.04 : x
  2. Step 2: Convert to fraction form
    23,709.72/32,720.08 = 13,100.04/x
  3. Step 3: Cross multiply
    23,709.72x = 32,720.08 × 13,100.04
  4. Step 4: Simplify right side
    23,709.72x = 428,634,324.05
  5. Step 5: Solve for x
    x = 428,634,324.05/23,709.72
  6. Step 6: Final answer
    x = 18,078.42

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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.