Home / 19,787.65-29,683.01-5,747.90

Finding the Fourth Proportional to 19,787.65, 29,683.01 and 5,747.90

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Solution

The fourth proportional to 19,787.65, 29,683.01 and 5,747.90 is: 8,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.65 : 29,683.01 = 5,747.90 : x
  2. Step 2: Convert to fraction form
    19,787.65/29,683.01 = 5,747.90/x
  3. Step 3: Cross multiply
    19,787.65x = 29,683.01 × 5,747.90
  4. Step 4: Simplify right side
    19,787.65x = 170,614,973.18
  5. Step 5: Solve for x
    x = 170,614,973.18/19,787.65
  6. Step 6: Final answer
    x = 8,622.30

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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.