Home / 20,180.41-30,271.76-6,140.90

Finding the Fourth Proportional to 20,180.41, 30,271.76 and 6,140.90

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Solution

The fourth proportional to 20,180.41, 30,271.76 and 6,140.90 is: 9,211.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.41 : 30,271.76 = 6,140.90 : x
  2. Step 2: Convert to fraction form
    20,180.41/30,271.76 = 6,140.90/x
  3. Step 3: Cross multiply
    20,180.41x = 30,271.76 × 6,140.90
  4. Step 4: Simplify right side
    20,180.41x = 185,895,735.76
  5. Step 5: Solve for x
    x = 185,895,735.76/20,180.41
  6. Step 6: Final answer
    x = 9,211.69

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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.