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Finding the Fourth Proportional to 26,954.40, 40,431.60 and 17,623.20

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Solution

The fourth proportional to 26,954.40, 40,431.60 and 17,623.20 is: 26,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,954.40 : 40,431.60 = 17,623.20 : x
  2. Step 2: Convert to fraction form
    26,954.40/40,431.60 = 17,623.20/x
  3. Step 3: Cross multiply
    26,954.40x = 40,431.60 × 17,623.20
  4. Step 4: Simplify right side
    26,954.40x = 712,534,173.12
  5. Step 5: Solve for x
    x = 712,534,173.12/26,954.40
  6. Step 6: Final answer
    x = 26,434.80

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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.