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Finding the Fourth Proportional to 27,955.40, 38,591.03 and 18,400.29

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Solution

The fourth proportional to 27,955.40, 38,591.03 and 18,400.29 is: 25,400.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,955.40 : 38,591.03 = 18,400.29 : x
  2. Step 2: Convert to fraction form
    27,955.40/38,591.03 = 18,400.29/x
  3. Step 3: Cross multiply
    27,955.40x = 38,591.03 × 18,400.29
  4. Step 4: Simplify right side
    27,955.40x = 710,086,153.22
  5. Step 5: Solve for x
    x = 710,086,153.22/27,955.40
  6. Step 6: Final answer
    x = 25,400.68

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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.