Home / 28,135.83-38,832.64-18,076.85

Finding the Fourth Proportional to 28,135.83, 38,832.64 and 18,076.85

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Solution

The fourth proportional to 28,135.83, 38,832.64 and 18,076.85 is: 24,949.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.83 : 38,832.64 = 18,076.85 : x
  2. Step 2: Convert to fraction form
    28,135.83/38,832.64 = 18,076.85/x
  3. Step 3: Cross multiply
    28,135.83x = 38,832.64 × 18,076.85
  4. Step 4: Simplify right side
    28,135.83x = 701,971,808.38
  5. Step 5: Solve for x
    x = 701,971,808.38/28,135.83
  6. Step 6: Final answer
    x = 24,949.39

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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.