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Finding the Fourth Proportional to 27,326.53, 37,710.74 and 15,390.07

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Solution

The fourth proportional to 27,326.53, 37,710.74 and 15,390.07 is: 21,238.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,326.53 : 37,710.74 = 15,390.07 : x
  2. Step 2: Convert to fraction form
    27,326.53/37,710.74 = 15,390.07/x
  3. Step 3: Cross multiply
    27,326.53x = 37,710.74 × 15,390.07
  4. Step 4: Simplify right side
    27,326.53x = 580,370,928.35
  5. Step 5: Solve for x
    x = 580,370,928.35/27,326.53
  6. Step 6: Final answer
    x = 21,238.37

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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.