Home / 30,209.83-41,688.71-16,780.75

Finding the Fourth Proportional to 30,209.83, 41,688.71 and 16,780.75

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Solution

The fourth proportional to 30,209.83, 41,688.71 and 16,780.75 is: 23,156.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.83 : 41,688.71 = 16,780.75 : x
  2. Step 2: Convert to fraction form
    30,209.83/41,688.71 = 16,780.75/x
  3. Step 3: Cross multiply
    30,209.83x = 41,688.71 × 16,780.75
  4. Step 4: Simplify right side
    30,209.83x = 699,567,736.43
  5. Step 5: Solve for x
    x = 699,567,736.43/30,209.83
  6. Step 6: Final answer
    x = 23,156.96

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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.