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Finding the Fourth Proportional to 17,605.20, 26,359.20 and 13,717.20

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Solution

The fourth proportional to 17,605.20, 26,359.20 and 13,717.20 is: 20,537.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,605.20 : 26,359.20 = 13,717.20 : x
  2. Step 2: Convert to fraction form
    17,605.20/26,359.20 = 13,717.20/x
  3. Step 3: Cross multiply
    17,605.20x = 26,359.20 × 13,717.20
  4. Step 4: Simplify right side
    17,605.20x = 361,574,418.24
  5. Step 5: Solve for x
    x = 361,574,418.24/17,605.20
  6. Step 6: Final answer
    x = 20,537.93

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