Home / 20,380.94-30,569.36-5,591.34

Finding the Fourth Proportional to 20,380.94, 30,569.36 and 5,591.34

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Solution

The fourth proportional to 20,380.94, 30,569.36 and 5,591.34 is: 8,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380.94 : 30,569.36 = 5,591.34 : x
  2. Step 2: Convert to fraction form
    20,380.94/30,569.36 = 5,591.34/x
  3. Step 3: Cross multiply
    20,380.94x = 30,569.36 × 5,591.34
  4. Step 4: Simplify right side
    20,380.94x = 170,923,657.39
  5. Step 5: Solve for x
    x = 170,923,657.39/20,380.94
  6. Step 6: Final answer
    x = 8,386.45

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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.