Home / 20,550.05-30,801.74-8,696.43

Finding the Fourth Proportional to 20,550.05, 30,801.74 and 8,696.43

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Solution

The fourth proportional to 20,550.05, 30,801.74 and 8,696.43 is: 13,034.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550.05 : 30,801.74 = 8,696.43 : x
  2. Step 2: Convert to fraction form
    20,550.05/30,801.74 = 8,696.43/x
  3. Step 3: Cross multiply
    20,550.05x = 30,801.74 × 8,696.43
  4. Step 4: Simplify right side
    20,550.05x = 267,865,132.31
  5. Step 5: Solve for x
    x = 267,865,132.31/20,550.05
  6. Step 6: Final answer
    x = 13,034.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.