Home / 18,935.52-28,408.50-16,869.80

Finding the Fourth Proportional to 18,935.52, 28,408.50 and 16,869.80

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Solution

The fourth proportional to 18,935.52, 28,408.50 and 16,869.80 is: 25,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.52 : 28,408.50 = 16,869.80 : x
  2. Step 2: Convert to fraction form
    18,935.52/28,408.50 = 16,869.80/x
  3. Step 3: Cross multiply
    18,935.52x = 28,408.50 × 16,869.80
  4. Step 4: Simplify right side
    18,935.52x = 479,245,713.30
  5. Step 5: Solve for x
    x = 479,245,713.30/18,935.52
  6. Step 6: Final answer
    x = 25,309.35

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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.