Home / 28,676.67-43,006.80-11,142.39

Finding the Fourth Proportional to 28,676.67, 43,006.80 and 11,142.39

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Solution

The fourth proportional to 28,676.67, 43,006.80 and 11,142.39 is: 16,710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,676.67 : 43,006.80 = 11,142.39 : x
  2. Step 2: Convert to fraction form
    28,676.67/43,006.80 = 11,142.39/x
  3. Step 3: Cross multiply
    28,676.67x = 43,006.80 × 11,142.39
  4. Step 4: Simplify right side
    28,676.67x = 479,198,538.25
  5. Step 5: Solve for x
    x = 479,198,538.25/28,676.67
  6. Step 6: Final answer
    x = 16,710.40

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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.