Home / 21,311.44-31,967.04-5,727.76

Finding the Fourth Proportional to 21,311.44, 31,967.04 and 5,727.76

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Solution

The fourth proportional to 21,311.44, 31,967.04 and 5,727.76 is: 8,591.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,311.44 : 31,967.04 = 5,727.76 : x
  2. Step 2: Convert to fraction form
    21,311.44/31,967.04 = 5,727.76/x
  3. Step 3: Cross multiply
    21,311.44x = 31,967.04 × 5,727.76
  4. Step 4: Simplify right side
    21,311.44x = 183,099,533.03
  5. Step 5: Solve for x
    x = 183,099,533.03/21,311.44
  6. Step 6: Final answer
    x = 8,591.61

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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.