Home / 20,204.76-27,860.28-13,832.39

Finding the Fourth Proportional to 20,204.76, 27,860.28 and 13,832.39

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Solution

The fourth proportional to 20,204.76, 27,860.28 and 13,832.39 is: 19,073.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.76 : 27,860.28 = 13,832.39 : x
  2. Step 2: Convert to fraction form
    20,204.76/27,860.28 = 13,832.39/x
  3. Step 3: Cross multiply
    20,204.76x = 27,860.28 × 13,832.39
  4. Step 4: Simplify right side
    20,204.76x = 385,374,276.25
  5. Step 5: Solve for x
    x = 385,374,276.25/20,204.76
  6. Step 6: Final answer
    x = 19,073.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.