Home / 19,928.49-29,894.28-8,076.62

Finding the Fourth Proportional to 19,928.49, 29,894.28 and 8,076.62

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Solution

The fourth proportional to 19,928.49, 29,894.28 and 8,076.62 is: 12,115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.49 : 29,894.28 = 8,076.62 : x
  2. Step 2: Convert to fraction form
    19,928.49/29,894.28 = 8,076.62/x
  3. Step 3: Cross multiply
    19,928.49x = 29,894.28 × 8,076.62
  4. Step 4: Simplify right side
    19,928.49x = 241,444,711.46
  5. Step 5: Solve for x
    x = 241,444,711.46/19,928.49
  6. Step 6: Final answer
    x = 12,115.56

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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.