Home / 21,904.36-30,228.02-11,832.80

Finding the Fourth Proportional to 21,904.36, 30,228.02 and 11,832.80

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Solution

The fourth proportional to 21,904.36, 30,228.02 and 11,832.80 is: 16,329.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.36 : 30,228.02 = 11,832.80 : x
  2. Step 2: Convert to fraction form
    21,904.36/30,228.02 = 11,832.80/x
  3. Step 3: Cross multiply
    21,904.36x = 30,228.02 × 11,832.80
  4. Step 4: Simplify right side
    21,904.36x = 357,682,115.06
  5. Step 5: Solve for x
    x = 357,682,115.06/21,904.36
  6. Step 6: Final answer
    x = 16,329.27

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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.