Home / 25,377.47-34,997.64-21,791.21

Finding the Fourth Proportional to 25,377.47, 34,997.64 and 21,791.21

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Solution

The fourth proportional to 25,377.47, 34,997.64 and 21,791.21 is: 30,051.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,377.47 : 34,997.64 = 21,791.21 : x
  2. Step 2: Convert to fraction form
    25,377.47/34,997.64 = 21,791.21/x
  3. Step 3: Cross multiply
    25,377.47x = 34,997.64 × 21,791.21
  4. Step 4: Simplify right side
    25,377.47x = 762,641,046.76
  5. Step 5: Solve for x
    x = 762,641,046.76/25,377.47
  6. Step 6: Final answer
    x = 30,051.89

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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.