Home / 28,751.28-39,676.32-16,176.06

Finding the Fourth Proportional to 28,751.28, 39,676.32 and 16,176.06

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Solution

The fourth proportional to 28,751.28, 39,676.32 and 16,176.06 is: 22,322.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,751.28 : 39,676.32 = 16,176.06 : x
  2. Step 2: Convert to fraction form
    28,751.28/39,676.32 = 16,176.06/x
  3. Step 3: Cross multiply
    28,751.28x = 39,676.32 × 16,176.06
  4. Step 4: Simplify right side
    28,751.28x = 641,806,532.90
  5. Step 5: Solve for x
    x = 641,806,532.90/28,751.28
  6. Step 6: Final answer
    x = 22,322.71

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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.