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Finding the Fourth Proportional to 17,343.99, 23,930.91 and 13,315.46

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Solution

The fourth proportional to 17,343.99, 23,930.91 and 13,315.46 is: 18,372.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,343.99 : 23,930.91 = 13,315.46 : x
  2. Step 2: Convert to fraction form
    17,343.99/23,930.91 = 13,315.46/x
  3. Step 3: Cross multiply
    17,343.99x = 23,930.91 × 13,315.46
  4. Step 4: Simplify right side
    17,343.99x = 318,650,955.21
  5. Step 5: Solve for x
    x = 318,650,955.21/17,343.99
  6. Step 6: Final answer
    x = 18,372.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.