Home / 19,026.97-28,507.64-12,611.61

Finding the Fourth Proportional to 19,026.97, 28,507.64 and 12,611.61

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Solution

The fourth proportional to 19,026.97, 28,507.64 and 12,611.61 is: 18,895.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,026.97 : 28,507.64 = 12,611.61 : x
  2. Step 2: Convert to fraction form
    19,026.97/28,507.64 = 12,611.61/x
  3. Step 3: Cross multiply
    19,026.97x = 28,507.64 × 12,611.61
  4. Step 4: Simplify right side
    19,026.97x = 359,527,174.64
  5. Step 5: Solve for x
    x = 359,527,174.64/19,026.97
  6. Step 6: Final answer
    x = 18,895.66

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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.