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Finding the Fourth Proportional to 27,394.63, 37,795.74 and 21,633.79

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Solution

The fourth proportional to 27,394.63, 37,795.74 and 21,633.79 is: 29,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,394.63 : 37,795.74 = 21,633.79 : x
  2. Step 2: Convert to fraction form
    27,394.63/37,795.74 = 21,633.79/x
  3. Step 3: Cross multiply
    27,394.63x = 37,795.74 × 21,633.79
  4. Step 4: Simplify right side
    27,394.63x = 817,665,102.05
  5. Step 5: Solve for x
    x = 817,665,102.05/27,394.63
  6. Step 6: Final answer
    x = 29,847.64

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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.