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Finding the Fourth Proportional to 33,154.53, 49,739.69 and 9,780.99

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Solution

The fourth proportional to 33,154.53, 49,739.69 and 9,780.99 is: 14,673.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,154.53 : 49,739.69 = 9,780.99 : x
  2. Step 2: Convert to fraction form
    33,154.53/49,739.69 = 9,780.99/x
  3. Step 3: Cross multiply
    33,154.53x = 49,739.69 × 9,780.99
  4. Step 4: Simplify right side
    33,154.53x = 486,503,434.95
  5. Step 5: Solve for x
    x = 486,503,434.95/33,154.53
  6. Step 6: Final answer
    x = 14,673.81

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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.