Home / 20,190.46-30,283.56-5,400.87

Finding the Fourth Proportional to 20,190.46, 30,283.56 and 5,400.87

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Solution

The fourth proportional to 20,190.46, 30,283.56 and 5,400.87 is: 8,100.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.46 : 30,283.56 = 5,400.87 : x
  2. Step 2: Convert to fraction form
    20,190.46/30,283.56 = 5,400.87/x
  3. Step 3: Cross multiply
    20,190.46x = 30,283.56 × 5,400.87
  4. Step 4: Simplify right side
    20,190.46x = 163,557,570.70
  5. Step 5: Solve for x
    x = 163,557,570.70/20,190.46
  6. Step 6: Final answer
    x = 8,100.74

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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.