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Finding the Fourth Proportional to 25,637.91, 38,489.67 and 21,766.92

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Solution

The fourth proportional to 25,637.91, 38,489.67 and 21,766.92 is: 32,678.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,637.91 : 38,489.67 = 21,766.92 : x
  2. Step 2: Convert to fraction form
    25,637.91/38,489.67 = 21,766.92/x
  3. Step 3: Cross multiply
    25,637.91x = 38,489.67 × 21,766.92
  4. Step 4: Simplify right side
    25,637.91x = 837,801,567.72
  5. Step 5: Solve for x
    x = 837,801,567.72/25,637.91
  6. Step 6: Final answer
    x = 32,678.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.