Home / 18,913.88-28,342.82-16,837.76

Finding the Fourth Proportional to 18,913.88, 28,342.82 and 16,837.76

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Solution

The fourth proportional to 18,913.88, 28,342.82 and 16,837.76 is: 25,231.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.88 : 28,342.82 = 16,837.76 : x
  2. Step 2: Convert to fraction form
    18,913.88/28,342.82 = 16,837.76/x
  3. Step 3: Cross multiply
    18,913.88x = 28,342.82 × 16,837.76
  4. Step 4: Simplify right side
    18,913.88x = 477,229,600.88
  5. Step 5: Solve for x
    x = 477,229,600.88/18,913.88
  6. Step 6: Final answer
    x = 25,231.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.