Home / 22,405.53-33,629.08-11,320

Finding the Fourth Proportional to 22,405.53, 33,629.08 and 11,320

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Solution

The fourth proportional to 22,405.53, 33,629.08 and 11,320 is: 16,990.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,405.53 : 33,629.08 = 11,320 : x
  2. Step 2: Convert to fraction form
    22,405.53/33,629.08 = 11,320/x
  3. Step 3: Cross multiply
    22,405.53x = 33,629.08 × 11,320
  4. Step 4: Simplify right side
    22,405.53x = 380,681,157.30
  5. Step 5: Solve for x
    x = 380,681,157.30/22,405.53
  6. Step 6: Final answer
    x = 16,990.50

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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.