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Finding the Fourth Proportional to 17,540.40, 26,259.40 and 15,697.20

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Solution

The fourth proportional to 17,540.40, 26,259.40 and 15,697.20 is: 23,499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,540.40 : 26,259.40 = 15,697.20 : x
  2. Step 2: Convert to fraction form
    17,540.40/26,259.40 = 15,697.20/x
  3. Step 3: Cross multiply
    17,540.40x = 26,259.40 × 15,697.20
  4. Step 4: Simplify right side
    17,540.40x = 412,199,053.68
  5. Step 5: Solve for x
    x = 412,199,053.68/17,540.40
  6. Step 6: Final answer
    x = 23,499.98

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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.