Home / 19,619.53-27,079.25-12,905.82

Finding the Fourth Proportional to 19,619.53, 27,079.25 and 12,905.82

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Solution

The fourth proportional to 19,619.53, 27,079.25 and 12,905.82 is: 17,812.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.53 : 27,079.25 = 12,905.82 : x
  2. Step 2: Convert to fraction form
    19,619.53/27,079.25 = 12,905.82/x
  3. Step 3: Cross multiply
    19,619.53x = 27,079.25 × 12,905.82
  4. Step 4: Simplify right side
    19,619.53x = 349,479,926.24
  5. Step 5: Solve for x
    x = 349,479,926.24/19,619.53
  6. Step 6: Final answer
    x = 17,812.86

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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.