Home / 19,679.53-29,525.67-11,780.81

Finding the Fourth Proportional to 19,679.53, 29,525.67 and 11,780.81

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Solution

The fourth proportional to 19,679.53, 29,525.67 and 11,780.81 is: 17,675.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.53 : 29,525.67 = 11,780.81 : x
  2. Step 2: Convert to fraction form
    19,679.53/29,525.67 = 11,780.81/x
  3. Step 3: Cross multiply
    19,679.53x = 29,525.67 × 11,780.81
  4. Step 4: Simplify right side
    19,679.53x = 347,836,308.39
  5. Step 5: Solve for x
    x = 347,836,308.39/19,679.53
  6. Step 6: Final answer
    x = 17,675.04

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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.