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Finding the Fourth Proportional to 17,389.20, 23,992.04 and 11,341.20

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Solution

The fourth proportional to 17,389.20, 23,992.04 and 11,341.20 is: 15,647.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,389.20 : 23,992.04 = 11,341.20 : x
  2. Step 2: Convert to fraction form
    17,389.20/23,992.04 = 11,341.20/x
  3. Step 3: Cross multiply
    17,389.20x = 23,992.04 × 11,341.20
  4. Step 4: Simplify right side
    17,389.20x = 272,098,524.05
  5. Step 5: Solve for x
    x = 272,098,524.05/17,389.20
  6. Step 6: Final answer
    x = 15,647.56

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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.