Home / 20,787.90-31,185.99-5,996.94

Finding the Fourth Proportional to 20,787.90, 31,185.99 and 5,996.94

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Solution

The fourth proportional to 20,787.90, 31,185.99 and 5,996.94 is: 8,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,787.90 : 31,185.99 = 5,996.94 : x
  2. Step 2: Convert to fraction form
    20,787.90/31,185.99 = 5,996.94/x
  3. Step 3: Cross multiply
    20,787.90x = 31,185.99 × 5,996.94
  4. Step 4: Simplify right side
    20,787.90x = 187,020,510.87
  5. Step 5: Solve for x
    x = 187,020,510.87/20,787.90
  6. Step 6: Final answer
    x = 8,996.60

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1.5x scale

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.