Home / 18,335.49-25,205.69-15,773.89

Finding the Fourth Proportional to 18,335.49, 25,205.69 and 15,773.89

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Solution

The fourth proportional to 18,335.49, 25,205.69 and 15,773.89 is: 21,684.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,335.49 : 25,205.69 = 15,773.89 : x
  2. Step 2: Convert to fraction form
    18,335.49/25,205.69 = 15,773.89/x
  3. Step 3: Cross multiply
    18,335.49x = 25,205.69 × 15,773.89
  4. Step 4: Simplify right side
    18,335.49x = 397,591,781.43
  5. Step 5: Solve for x
    x = 397,591,781.43/18,335.49
  6. Step 6: Final answer
    x = 21,684.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.