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Finding the Fourth Proportional to 27,705.58, 38,224.22 and 15,765.93

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Solution

The fourth proportional to 27,705.58, 38,224.22 and 15,765.93 is: 21,751.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,705.58 : 38,224.22 = 15,765.93 : x
  2. Step 2: Convert to fraction form
    27,705.58/38,224.22 = 15,765.93/x
  3. Step 3: Cross multiply
    27,705.58x = 38,224.22 × 15,765.93
  4. Step 4: Simplify right side
    27,705.58x = 602,640,376.82
  5. Step 5: Solve for x
    x = 602,640,376.82/27,705.58
  6. Step 6: Final answer
    x = 21,751.59

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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.