Home / 28,930.26-39,907.68-16,829.38

Finding the Fourth Proportional to 28,930.26, 39,907.68 and 16,829.38

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Solution

The fourth proportional to 28,930.26, 39,907.68 and 16,829.38 is: 23,215.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.26 : 39,907.68 = 16,829.38 : x
  2. Step 2: Convert to fraction form
    28,930.26/39,907.68 = 16,829.38/x
  3. Step 3: Cross multiply
    28,930.26x = 39,907.68 × 16,829.38
  4. Step 4: Simplify right side
    28,930.26x = 671,621,498.41
  5. Step 5: Solve for x
    x = 671,621,498.41/28,930.26
  6. Step 6: Final answer
    x = 23,215.19

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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.