Home / 21,816.39-32,727.62-7,772.24

Finding the Fourth Proportional to 21,816.39, 32,727.62 and 7,772.24

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Solution

The fourth proportional to 21,816.39, 32,727.62 and 7,772.24 is: 11,659.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,816.39 : 32,727.62 = 7,772.24 : x
  2. Step 2: Convert to fraction form
    21,816.39/32,727.62 = 7,772.24/x
  3. Step 3: Cross multiply
    21,816.39x = 32,727.62 × 7,772.24
  4. Step 4: Simplify right side
    21,816.39x = 254,366,950.64
  5. Step 5: Solve for x
    x = 254,366,950.64/21,816.39
  6. Step 6: Final answer
    x = 11,659.44

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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.