Home / 20,878.59-28,817.07-16,332.27

Finding the Fourth Proportional to 20,878.59, 28,817.07 and 16,332.27

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Solution

The fourth proportional to 20,878.59, 28,817.07 and 16,332.27 is: 22,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,878.59 : 28,817.07 = 16,332.27 : x
  2. Step 2: Convert to fraction form
    20,878.59/28,817.07 = 16,332.27/x
  3. Step 3: Cross multiply
    20,878.59x = 28,817.07 × 16,332.27
  4. Step 4: Simplify right side
    20,878.59x = 470,647,998.54
  5. Step 5: Solve for x
    x = 470,647,998.54/20,878.59
  6. Step 6: Final answer
    x = 22,542.13

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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.