Home / 28,747.73-39,671.43-16,172.48

Finding the Fourth Proportional to 28,747.73, 39,671.43 and 16,172.48

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Solution

The fourth proportional to 28,747.73, 39,671.43 and 16,172.48 is: 22,317.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.73 : 39,671.43 = 16,172.48 : x
  2. Step 2: Convert to fraction form
    28,747.73/39,671.43 = 16,172.48/x
  3. Step 3: Cross multiply
    28,747.73x = 39,671.43 × 16,172.48
  4. Step 4: Simplify right side
    28,747.73x = 641,585,209.89
  5. Step 5: Solve for x
    x = 641,585,209.89/28,747.73
  6. Step 6: Final answer
    x = 22,317.77

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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.