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Finding the Fourth Proportional to 27,374.29, 37,797.90 and 21,422.92

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Solution

The fourth proportional to 27,374.29, 37,797.90 and 21,422.92 is: 29,580.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,374.29 : 37,797.90 = 21,422.92 : x
  2. Step 2: Convert to fraction form
    27,374.29/37,797.90 = 21,422.92/x
  3. Step 3: Cross multiply
    27,374.29x = 37,797.90 × 21,422.92
  4. Step 4: Simplify right side
    27,374.29x = 809,741,387.87
  5. Step 5: Solve for x
    x = 809,741,387.87/27,374.29
  6. Step 6: Final answer
    x = 29,580.36

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1.5x scale

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.