Home / 20,380.94-30,572.71-7,055.21

Finding the Fourth Proportional to 20,380.94, 30,572.71 and 7,055.21

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Solution

The fourth proportional to 20,380.94, 30,572.71 and 7,055.21 is: 10,583.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380.94 : 30,572.71 = 7,055.21 : x
  2. Step 2: Convert to fraction form
    20,380.94/30,572.71 = 7,055.21/x
  3. Step 3: Cross multiply
    20,380.94x = 30,572.71 × 7,055.21
  4. Step 4: Simplify right side
    20,380.94x = 215,696,930.47
  5. Step 5: Solve for x
    x = 215,696,930.47/20,380.94
  6. Step 6: Final answer
    x = 10,583.27

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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.