Home / 28,747.86-39,671.98-16,172.61

Finding the Fourth Proportional to 28,747.86, 39,671.98 and 16,172.61

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Solution

The fourth proportional to 28,747.86, 39,671.98 and 16,172.61 is: 22,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.86 : 39,671.98 = 16,172.61 : x
  2. Step 2: Convert to fraction form
    28,747.86/39,671.98 = 16,172.61/x
  3. Step 3: Cross multiply
    28,747.86x = 39,671.98 × 16,172.61
  4. Step 4: Simplify right side
    28,747.86x = 641,599,331.91
  5. Step 5: Solve for x
    x = 641,599,331.91/28,747.86
  6. Step 6: Final answer
    x = 22,318.16

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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.