Home / 28,747.98-39,671.64-16,172.64

Finding the Fourth Proportional to 28,747.98, 39,671.64 and 16,172.64

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Solution

The fourth proportional to 28,747.98, 39,671.64 and 16,172.64 is: 22,317.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.98 : 39,671.64 = 16,172.64 : x
  2. Step 2: Convert to fraction form
    28,747.98/39,671.64 = 16,172.64/x
  3. Step 3: Cross multiply
    28,747.98x = 39,671.64 × 16,172.64
  4. Step 4: Simplify right side
    28,747.98x = 641,595,151.93
  5. Step 5: Solve for x
    x = 641,595,151.93/28,747.98
  6. Step 6: Final answer
    x = 22,317.92

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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.