Home / 20,513.13-30,827.41-12,194.64

Finding the Fourth Proportional to 20,513.13, 30,827.41 and 12,194.64

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Solution

The fourth proportional to 20,513.13, 30,827.41 and 12,194.64 is: 18,326.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513.13 : 30,827.41 = 12,194.64 : x
  2. Step 2: Convert to fraction form
    20,513.13/30,827.41 = 12,194.64/x
  3. Step 3: Cross multiply
    20,513.13x = 30,827.41 × 12,194.64
  4. Step 4: Simplify right side
    20,513.13x = 375,929,089.59
  5. Step 5: Solve for x
    x = 375,929,089.59/20,513.13
  6. Step 6: Final answer
    x = 18,326.26

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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.