Home / 28,755.52-39,683.46-16,180

Finding the Fourth Proportional to 28,755.52, 39,683.46 and 16,180

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Solution

The fourth proportional to 28,755.52, 39,683.46 and 16,180 is: 22,328.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755.52 : 39,683.46 = 16,180 : x
  2. Step 2: Convert to fraction form
    28,755.52/39,683.46 = 16,180/x
  3. Step 3: Cross multiply
    28,755.52x = 39,683.46 × 16,180
  4. Step 4: Simplify right side
    28,755.52x = 642,078,382.80
  5. Step 5: Solve for x
    x = 642,078,382.80/28,755.52
  6. Step 6: Final answer
    x = 22,328.87

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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.