Home / 21,997.56-32,976.30-11,455.17

Finding the Fourth Proportional to 21,997.56, 32,976.30 and 11,455.17

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Solution

The fourth proportional to 21,997.56, 32,976.30 and 11,455.17 is: 17,172.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.56 : 32,976.30 = 11,455.17 : x
  2. Step 2: Convert to fraction form
    21,997.56/32,976.30 = 11,455.17/x
  3. Step 3: Cross multiply
    21,997.56x = 32,976.30 × 11,455.17
  4. Step 4: Simplify right side
    21,997.56x = 377,749,122.47
  5. Step 5: Solve for x
    x = 377,749,122.47/21,997.56
  6. Step 6: Final answer
    x = 17,172.32

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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.