Home / 28,779.76-39,716.04-16,204.24

Finding the Fourth Proportional to 28,779.76, 39,716.04 and 16,204.24

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Solution

The fourth proportional to 28,779.76, 39,716.04 and 16,204.24 is: 22,361.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.76 : 39,716.04 = 16,204.24 : x
  2. Step 2: Convert to fraction form
    28,779.76/39,716.04 = 16,204.24/x
  3. Step 3: Cross multiply
    28,779.76x = 39,716.04 × 16,204.24
  4. Step 4: Simplify right side
    28,779.76x = 643,568,244.01
  5. Step 5: Solve for x
    x = 643,568,244.01/28,779.76
  6. Step 6: Final answer
    x = 22,361.83

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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.