Home / 20,880.27-28,798.85-17,974.73

Finding the Fourth Proportional to 20,880.27, 28,798.85 and 17,974.73

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Solution

The fourth proportional to 20,880.27, 28,798.85 and 17,974.73 is: 24,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,880.27 : 28,798.85 = 17,974.73 : x
  2. Step 2: Convert to fraction form
    20,880.27/28,798.85 = 17,974.73/x
  3. Step 3: Cross multiply
    20,880.27x = 28,798.85 × 17,974.73
  4. Step 4: Simplify right side
    20,880.27x = 517,651,319.19
  5. Step 5: Solve for x
    x = 517,651,319.19/20,880.27
  6. Step 6: Final answer
    x = 24,791.41

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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.