Home / 21,591.87-29,796.86-12,637.62

Finding the Fourth Proportional to 21,591.87, 29,796.86 and 12,637.62

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Solution

The fourth proportional to 21,591.87, 29,796.86 and 12,637.62 is: 17,439.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,591.87 : 29,796.86 = 12,637.62 : x
  2. Step 2: Convert to fraction form
    21,591.87/29,796.86 = 12,637.62/x
  3. Step 3: Cross multiply
    21,591.87x = 29,796.86 × 12,637.62
  4. Step 4: Simplify right side
    21,591.87x = 376,561,425.47
  5. Step 5: Solve for x
    x = 376,561,425.47/21,591.87
  6. Step 6: Final answer
    x = 17,439.97

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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.