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Finding the Fourth Proportional to 25,921, 38,834.52 and 11,892.78

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Solution

The fourth proportional to 25,921, 38,834.52 and 11,892.78 is: 17,817.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,921 : 38,834.52 = 11,892.78 : x
  2. Step 2: Convert to fraction form
    25,921/38,834.52 = 11,892.78/x
  3. Step 3: Cross multiply
    25,921x = 38,834.52 × 11,892.78
  4. Step 4: Simplify right side
    25,921x = 461,850,402.77
  5. Step 5: Solve for x
    x = 461,850,402.77/25,921
  6. Step 6: Final answer
    x = 17,817.62

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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.