Home / 19,787.06-29,680.46-4,995.90

Finding the Fourth Proportional to 19,787.06, 29,680.46 and 4,995.90

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Solution

The fourth proportional to 19,787.06, 29,680.46 and 4,995.90 is: 7,493.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.06 : 29,680.46 = 4,995.90 : x
  2. Step 2: Convert to fraction form
    19,787.06/29,680.46 = 4,995.90/x
  3. Step 3: Cross multiply
    19,787.06x = 29,680.46 × 4,995.90
  4. Step 4: Simplify right side
    19,787.06x = 148,280,585.13
  5. Step 5: Solve for x
    x = 148,280,585.13/19,787.06
  6. Step 6: Final answer
    x = 7,493.82

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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.