Home / 20,537.53-28,343.12-11,584.85

Finding the Fourth Proportional to 20,537.53, 28,343.12 and 11,584.85

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Solution

The fourth proportional to 20,537.53, 28,343.12 and 11,584.85 is: 15,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.53 : 28,343.12 = 11,584.85 : x
  2. Step 2: Convert to fraction form
    20,537.53/28,343.12 = 11,584.85/x
  3. Step 3: Cross multiply
    20,537.53x = 28,343.12 × 11,584.85
  4. Step 4: Simplify right side
    20,537.53x = 328,350,673.81
  5. Step 5: Solve for x
    x = 328,350,673.81/20,537.53
  6. Step 6: Final answer
    x = 15,987.83

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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.