Home / 30,207.76-41,687.88-16,780.04

Finding the Fourth Proportional to 30,207.76, 41,687.88 and 16,780.04

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Solution

The fourth proportional to 30,207.76, 41,687.88 and 16,780.04 is: 23,157.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.76 : 41,687.88 = 16,780.04 : x
  2. Step 2: Convert to fraction form
    30,207.76/41,687.88 = 16,780.04/x
  3. Step 3: Cross multiply
    30,207.76x = 41,687.88 × 16,780.04
  4. Step 4: Simplify right side
    30,207.76x = 699,524,293.92
  5. Step 5: Solve for x
    x = 699,524,293.92/30,207.76
  6. Step 6: Final answer
    x = 23,157.11

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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.