Home / 28,752.88-39,678.48-16,177.60

Finding the Fourth Proportional to 28,752.88, 39,678.48 and 16,177.60

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Solution

The fourth proportional to 28,752.88, 39,678.48 and 16,177.60 is: 22,324.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752.88 : 39,678.48 = 16,177.60 : x
  2. Step 2: Convert to fraction form
    28,752.88/39,678.48 = 16,177.60/x
  3. Step 3: Cross multiply
    28,752.88x = 39,678.48 × 16,177.60
  4. Step 4: Simplify right side
    28,752.88x = 641,902,578.05
  5. Step 5: Solve for x
    x = 641,902,578.05/28,752.88
  6. Step 6: Final answer
    x = 22,324.81

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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.