Home / 20,360.25-30,679.07-16,743.49

Finding the Fourth Proportional to 20,360.25, 30,679.07 and 16,743.49

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Solution

The fourth proportional to 20,360.25, 30,679.07 and 16,743.49 is: 25,229.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.25 : 30,679.07 = 16,743.49 : x
  2. Step 2: Convert to fraction form
    20,360.25/30,679.07 = 16,743.49/x
  3. Step 3: Cross multiply
    20,360.25x = 30,679.07 × 16,743.49
  4. Step 4: Simplify right side
    20,360.25x = 513,674,701.75
  5. Step 5: Solve for x
    x = 513,674,701.75/20,360.25
  6. Step 6: Final answer
    x = 25,229.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.