Home / 19,787.76-29,680.92-5,936.40

Finding the Fourth Proportional to 19,787.76, 29,680.92 and 5,936.40

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Solution

The fourth proportional to 19,787.76, 29,680.92 and 5,936.40 is: 8,904.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.76 : 29,680.92 = 5,936.40 : x
  2. Step 2: Convert to fraction form
    19,787.76/29,680.92 = 5,936.40/x
  3. Step 3: Cross multiply
    19,787.76x = 29,680.92 × 5,936.40
  4. Step 4: Simplify right side
    19,787.76x = 176,197,813.49
  5. Step 5: Solve for x
    x = 176,197,813.49/19,787.76
  6. Step 6: Final answer
    x = 8,904.38

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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.