Home / 20,180.54-30,270.74-6,140.49

Finding the Fourth Proportional to 20,180.54, 30,270.74 and 6,140.49

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Solution

The fourth proportional to 20,180.54, 30,270.74 and 6,140.49 is: 9,210.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.54 : 30,270.74 = 6,140.49 : x
  2. Step 2: Convert to fraction form
    20,180.54/30,270.74 = 6,140.49/x
  3. Step 3: Cross multiply
    20,180.54x = 30,270.74 × 6,140.49
  4. Step 4: Simplify right side
    20,180.54x = 185,877,145.56
  5. Step 5: Solve for x
    x = 185,877,145.56/20,180.54
  6. Step 6: Final answer
    x = 9,210.71

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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.