Home / 21,728.13-32,591.93-6,936.86

Finding the Fourth Proportional to 21,728.13, 32,591.93 and 6,936.86

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Solution

The fourth proportional to 21,728.13, 32,591.93 and 6,936.86 is: 10,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,728.13 : 32,591.93 = 6,936.86 : x
  2. Step 2: Convert to fraction form
    21,728.13/32,591.93 = 6,936.86/x
  3. Step 3: Cross multiply
    21,728.13x = 32,591.93 × 6,936.86
  4. Step 4: Simplify right side
    21,728.13x = 226,085,457.90
  5. Step 5: Solve for x
    x = 226,085,457.90/21,728.13
  6. Step 6: Final answer
    x = 10,405.20

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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.