Home / 22,391.28-33,513.09-12,380.64

Finding the Fourth Proportional to 22,391.28, 33,513.09 and 12,380.64

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Solution

The fourth proportional to 22,391.28, 33,513.09 and 12,380.64 is: 18,530.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,391.28 : 33,513.09 = 12,380.64 : x
  2. Step 2: Convert to fraction form
    22,391.28/33,513.09 = 12,380.64/x
  3. Step 3: Cross multiply
    22,391.28x = 33,513.09 × 12,380.64
  4. Step 4: Simplify right side
    22,391.28x = 414,913,502.58
  5. Step 5: Solve for x
    x = 414,913,502.58/22,391.28
  6. Step 6: Final answer
    x = 18,530.14

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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.