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Finding the Fourth Proportional to 27,072, 37,356.96 and 15,131.52

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Solution

The fourth proportional to 27,072, 37,356.96 and 15,131.52 is: 20,880.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,072 : 37,356.96 = 15,131.52 : x
  2. Step 2: Convert to fraction form
    27,072/37,356.96 = 15,131.52/x
  3. Step 3: Cross multiply
    27,072x = 37,356.96 × 15,131.52
  4. Step 4: Simplify right side
    27,072x = 565,267,587.38
  5. Step 5: Solve for x
    x = 565,267,587.38/27,072
  6. Step 6: Final answer
    x = 20,880.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.