Home / 19,871.74-27,422.92-11,373.82

Finding the Fourth Proportional to 19,871.74, 27,422.92 and 11,373.82

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Solution

The fourth proportional to 19,871.74, 27,422.92 and 11,373.82 is: 15,695.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.74 : 27,422.92 = 11,373.82 : x
  2. Step 2: Convert to fraction form
    19,871.74/27,422.92 = 11,373.82/x
  3. Step 3: Cross multiply
    19,871.74x = 27,422.92 × 11,373.82
  4. Step 4: Simplify right side
    19,871.74x = 311,903,355.95
  5. Step 5: Solve for x
    x = 311,903,355.95/19,871.74
  6. Step 6: Final answer
    x = 15,695.83

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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.