Home / 21,493.25-29,660.99-11,803.50

Finding the Fourth Proportional to 21,493.25, 29,660.99 and 11,803.50

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Solution

The fourth proportional to 21,493.25, 29,660.99 and 11,803.50 is: 16,288.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,493.25 : 29,660.99 = 11,803.50 : x
  2. Step 2: Convert to fraction form
    21,493.25/29,660.99 = 11,803.50/x
  3. Step 3: Cross multiply
    21,493.25x = 29,660.99 × 11,803.50
  4. Step 4: Simplify right side
    21,493.25x = 350,103,353.03
  5. Step 5: Solve for x
    x = 350,103,353.03/21,493.25
  6. Step 6: Final answer
    x = 16,288.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.