Home / 21,664.52-32,496.78-7,621.24

Finding the Fourth Proportional to 21,664.52, 32,496.78 and 7,621.24

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Solution

The fourth proportional to 21,664.52, 32,496.78 and 7,621.24 is: 11,431.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.52 : 32,496.78 = 7,621.24 : x
  2. Step 2: Convert to fraction form
    21,664.52/32,496.78 = 7,621.24/x
  3. Step 3: Cross multiply
    21,664.52x = 32,496.78 × 7,621.24
  4. Step 4: Simplify right side
    21,664.52x = 247,665,759.61
  5. Step 5: Solve for x
    x = 247,665,759.61/21,664.52
  6. Step 6: Final answer
    x = 11,431.86

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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.