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Finding the Fourth Proportional to 27,109.95, 37,411.72 and 15,173.28

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Solution

The fourth proportional to 27,109.95, 37,411.72 and 15,173.28 is: 20,939.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,109.95 : 37,411.72 = 15,173.28 : x
  2. Step 2: Convert to fraction form
    27,109.95/37,411.72 = 15,173.28/x
  3. Step 3: Cross multiply
    27,109.95x = 37,411.72 × 15,173.28
  4. Step 4: Simplify right side
    27,109.95x = 567,658,464.91
  5. Step 5: Solve for x
    x = 567,658,464.91/27,109.95
  6. Step 6: Final answer
    x = 20,939.12

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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.