Home / 21,817.68-32,728.32-7,772.28

Finding the Fourth Proportional to 21,817.68, 32,728.32 and 7,772.28

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Solution

The fourth proportional to 21,817.68, 32,728.32 and 7,772.28 is: 11,659.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,817.68 : 32,728.32 = 7,772.28 : x
  2. Step 2: Convert to fraction form
    21,817.68/32,728.32 = 7,772.28/x
  3. Step 3: Cross multiply
    21,817.68x = 32,728.32 × 7,772.28
  4. Step 4: Simplify right side
    21,817.68x = 254,373,666.97
  5. Step 5: Solve for x
    x = 254,373,666.97/21,817.68
  6. Step 6: Final answer
    x = 11,659.06

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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.