Home / 21,904.39-30,228.03-11,832.83

Finding the Fourth Proportional to 21,904.39, 30,228.03 and 11,832.83

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Solution

The fourth proportional to 21,904.39, 30,228.03 and 11,832.83 is: 16,329.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.39 : 30,228.03 = 11,832.83 : x
  2. Step 2: Convert to fraction form
    21,904.39/30,228.03 = 11,832.83/x
  3. Step 3: Cross multiply
    21,904.39x = 30,228.03 × 11,832.83
  4. Step 4: Simplify right side
    21,904.39x = 357,683,140.22
  5. Step 5: Solve for x
    x = 357,683,140.22/21,904.39
  6. Step 6: Final answer
    x = 16,329.29

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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.