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Finding the Fourth Proportional to 27,425.56, 37,848 and 15,489.16

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Solution

The fourth proportional to 27,425.56, 37,848 and 15,489.16 is: 21,375.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,425.56 : 37,848 = 15,489.16 : x
  2. Step 2: Convert to fraction form
    27,425.56/37,848 = 15,489.16/x
  3. Step 3: Cross multiply
    27,425.56x = 37,848 × 15,489.16
  4. Step 4: Simplify right side
    27,425.56x = 586,233,727.68
  5. Step 5: Solve for x
    x = 586,233,727.68/27,425.56
  6. Step 6: Final answer
    x = 21,375.45

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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.