Home / 30,209.58-41,688.36-16,780.50

Finding the Fourth Proportional to 30,209.58, 41,688.36 and 16,780.50

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Solution

The fourth proportional to 30,209.58, 41,688.36 and 16,780.50 is: 23,156.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.58 : 41,688.36 = 16,780.50 : x
  2. Step 2: Convert to fraction form
    30,209.58/41,688.36 = 16,780.50/x
  3. Step 3: Cross multiply
    30,209.58x = 41,688.36 × 16,780.50
  4. Step 4: Simplify right side
    30,209.58x = 699,551,524.98
  5. Step 5: Solve for x
    x = 699,551,524.98/30,209.58
  6. Step 6: Final answer
    x = 23,156.61

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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.