Home / 20,331.43-30,348.23-17,934.64

Finding the Fourth Proportional to 20,331.43, 30,348.23 and 17,934.64

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Solution

The fourth proportional to 20,331.43, 30,348.23 and 17,934.64 is: 26,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331.43 : 30,348.23 = 17,934.64 : x
  2. Step 2: Convert to fraction form
    20,331.43/30,348.23 = 17,934.64/x
  3. Step 3: Cross multiply
    20,331.43x = 30,348.23 × 17,934.64
  4. Step 4: Simplify right side
    20,331.43x = 544,284,579.69
  5. Step 5: Solve for x
    x = 544,284,579.69/20,331.43
  6. Step 6: Final answer
    x = 26,770.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.