Home / 19,180.32-28,932.54-18,171.96

Finding the Fourth Proportional to 19,180.32, 28,932.54 and 18,171.96

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Solution

The fourth proportional to 19,180.32, 28,932.54 and 18,171.96 is: 27,411.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.32 : 28,932.54 = 18,171.96 : x
  2. Step 2: Convert to fraction form
    19,180.32/28,932.54 = 18,171.96/x
  3. Step 3: Cross multiply
    19,180.32x = 28,932.54 × 18,171.96
  4. Step 4: Simplify right side
    19,180.32x = 525,760,959.58
  5. Step 5: Solve for x
    x = 525,760,959.58/19,180.32
  6. Step 6: Final answer
    x = 27,411.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.