Home / 21,972.53-32,960.66-7,181.12

Finding the Fourth Proportional to 21,972.53, 32,960.66 and 7,181.12

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Solution

The fourth proportional to 21,972.53, 32,960.66 and 7,181.12 is: 10,772.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.53 : 32,960.66 = 7,181.12 : x
  2. Step 2: Convert to fraction form
    21,972.53/32,960.66 = 7,181.12/x
  3. Step 3: Cross multiply
    21,972.53x = 32,960.66 × 7,181.12
  4. Step 4: Simplify right side
    21,972.53x = 236,694,501.24
  5. Step 5: Solve for x
    x = 236,694,501.24/21,972.53
  6. Step 6: Final answer
    x = 10,772.29

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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.