Home / 30,211.44-41,685.70-16,780.84

Finding the Fourth Proportional to 30,211.44, 41,685.70 and 16,780.84

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Solution

The fourth proportional to 30,211.44, 41,685.70 and 16,780.84 is: 23,154.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.44 : 41,685.70 = 16,780.84 : x
  2. Step 2: Convert to fraction form
    30,211.44/41,685.70 = 16,780.84/x
  3. Step 3: Cross multiply
    30,211.44x = 41,685.70 × 16,780.84
  4. Step 4: Simplify right side
    30,211.44x = 699,521,061.99
  5. Step 5: Solve for x
    x = 699,521,061.99/30,211.44
  6. Step 6: Final answer
    x = 23,154.18

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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.