Home / 19,972.66-29,960.11-5,181.18

Finding the Fourth Proportional to 19,972.66, 29,960.11 and 5,181.18

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Solution

The fourth proportional to 19,972.66, 29,960.11 and 5,181.18 is: 7,772.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.66 : 29,960.11 = 5,181.18 : x
  2. Step 2: Convert to fraction form
    19,972.66/29,960.11 = 5,181.18/x
  3. Step 3: Cross multiply
    19,972.66x = 29,960.11 × 5,181.18
  4. Step 4: Simplify right side
    19,972.66x = 155,228,722.73
  5. Step 5: Solve for x
    x = 155,228,722.73/19,972.66
  6. Step 6: Final answer
    x = 7,772.06

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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.