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Finding the Fourth Proportional to 27,775.74, 38,329.58 and 15,842.94

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Solution

The fourth proportional to 27,775.74, 38,329.58 and 15,842.94 is: 21,862.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,775.74 : 38,329.58 = 15,842.94 : x
  2. Step 2: Convert to fraction form
    27,775.74/38,329.58 = 15,842.94/x
  3. Step 3: Cross multiply
    27,775.74x = 38,329.58 × 15,842.94
  4. Step 4: Simplify right side
    27,775.74x = 607,253,236.17
  5. Step 5: Solve for x
    x = 607,253,236.17/27,775.74
  6. Step 6: Final answer
    x = 21,862.72

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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.