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Finding the Fourth Proportional to 27,916.66, 38,525.04 and 15,169.72

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Solution

The fourth proportional to 27,916.66, 38,525.04 and 15,169.72 is: 20,934.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,916.66 : 38,525.04 = 15,169.72 : x
  2. Step 2: Convert to fraction form
    27,916.66/38,525.04 = 15,169.72/x
  3. Step 3: Cross multiply
    27,916.66x = 38,525.04 × 15,169.72
  4. Step 4: Simplify right side
    27,916.66x = 584,413,993.94
  5. Step 5: Solve for x
    x = 584,413,993.94/27,916.66
  6. Step 6: Final answer
    x = 20,934.24

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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.