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Finding the Fourth Proportional to 27,798.54, 38,361.71 and 15,051.40

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Solution

The fourth proportional to 27,798.54, 38,361.71 and 15,051.40 is: 20,770.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,798.54 : 38,361.71 = 15,051.40 : x
  2. Step 2: Convert to fraction form
    27,798.54/38,361.71 = 15,051.40/x
  3. Step 3: Cross multiply
    27,798.54x = 38,361.71 × 15,051.40
  4. Step 4: Simplify right side
    27,798.54x = 577,397,441.89
  5. Step 5: Solve for x
    x = 577,397,441.89/27,798.54
  6. Step 6: Final answer
    x = 20,770.78

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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.